key: cord-0968280-4ekkv4s0
authors: Haeder, Simon F.
title: Joining the Herd? U.S. Public Opinion and Vaccination Requirements Across Educational Settings During the COVID-19 Pandemic
date: 2021-03-23
journal: Vaccine
DOI: 10.1016/j.vaccine.2021.03.055
sha: 6883cbe7019ecc378b8739e8f66bdf1b236dad23
doc_id: 968280
cord_uid: 4ekkv4s0

With effective and safe COVID-19 vaccines beginning to be distributed across the United States, questions about who should receive the vaccine first have been the focus of public discussions. Yet, over the long-term, questions about the order of distribution will be displaced by questions about how to achieve high levels of vaccination rates. Historically, absent incentives or mandates, Americans have shown ambivalence, if not general antipathy, towards vaccinations, and vaccination rates have generally been low for many vaccines. There is evidence that vaccination requirements across educational settings are an effective policy instrument to increase vaccination rates. We administered a large national survey to assess American’s attitudes towards vaccination requirements across three educational settings (daycares, K-12 schools, and universities) in general and for COVID-19 specifically. Partisanship, gender, race, rurality, and perceptions about the appropriate role schools should play in providing health services are substantive predictors of public opinion. While Americans generally support vaccination mandates across all three settings for both types of requirements, support is consistently and significantly lower for COVID19 requirements. The effect of partisanship is accentuated for COVID-19 requirements as compared to general requirements. Drop off in support between general and COVID-19 specific requirements are driven by partisanship, gender, political knowledge, rurality, and having children in the household. Nonetheless, mandates are supported by a majority of Americans. Assessing Americans’ opinions of vaccination requirements in educational settings offers an important opportunity to explore the potential of mandates as policy instrument in the government’s arsenal against COVID-19 and guide public policy on the issues.

The coronavirus pandemic has created unprecedented turmoil and thrust previously almost unimaginable challenges upon the world. In the United States, a nation particularly affected, a recent survey indicated that only 1 in 10 Americans saw their personal lives as largely untouched [1] . As a growing body of research vividly shows, the pandemic and the ensuing lockdowns have indeed worsened existing social and health challenges, laid bare existing systemic inequalities, and cruelly emphasized the pivotal role social determinants of health play in the United States [2] .

Yet the apparent development of a number of effective and safe vaccines offers a viable pathway out of the current quagmire, at least in the long-term. While vaccine shortages and vaccine hesitancy will ensure that the pandemic will be with us for months if not years to come [3] , policymakers have no time to waste in exploring policy instruments at their disposal to increase vaccine take-up in the future. One of these potentially useful policy instruments are vaccination requirements, also known as mandates, in educational settings [4] [5] [6] . These mandates have a long history in the United States and have been used to reign in diseases from smallpox to measles [7] . However, states differ widely in the stringency of these mandates as well as in their enforcement, and they have certainly not been without controversy among the general population [8] . However, vaccination mandates have a proven track-record of increasing vaccination rates [8, 9] . What we know little about, however, is how Americans feel about them in general, and even less so as they relate to COVID-19.

The analysis presented here offers one of the first comprehensive assessment of Americans' perception of vaccination mandates in daycare, K-12 schools, and colleges and university settings. Specifically, based on a large national survey, we assessed whether Americans' support differed for generalized as compared to COVID-19-specific mandates as well as for mandates focused on students as compared to those for teachers and staff. We also explored how individual characteristics of respondents were correlated with support for various mandates. Importantly, given its outsized role during the U.S. pandemic response [10, 11] , we particularly focused on the role of partisanship and its effect on public opinion.

We begin our assessment of vaccination requirements by briefly providing background on the emergence and evolution of vaccination mandates in the United States, scholarly assessments of their effectiveness, and their potential role in ending or alleviating the current pandemic. After describing the data and methods, we then present results for a number of models analyzing American public opinion on the issue. We conclude by highlighting the broader policy implications of our analysis.

Grounded in the police power of the states, requirements to vaccinate children as a prerequisite for school attendance first emerged in the early 1800s when Massachusetts mandated small pox vaccination [4, 5] . With the approval of the courts [4] , mandates slowly expanded over time, albeit slowly and unevenly. A major driver of expansions occurred after two states, Alaska and California, employed strong vaccination mandates and consistent enforcement to reign in measles outbreaks in the 1970s [12] . Today, requirements differ widely by state and vaccine [8] . They have also expanded to daycare centers [13] as well as colleges and universities [6] . Yet despite their ascertained constitutionality and widespread adoption, mandates have long elicited vocal opposition from some Americans [4, 7] [14] . Policymakers have been responsive to these concerns by generally including religious and, in some cases, broad philosophical exemptions [15] .

While most mandates and public attention have focused on the K-12 educational setting and, to a somewhat lesser degree, daycare, due to the nature of the population, as well as the types and frequency of interactions, colleges and universities are particularly challenged by infectious diseases [6, 16, 17] . Recent mumps outbreaks serve as an illustration of these challenges [18] . However, colleges and universities have generally paid little attention to this issue, and significant variation across the nation's campuses with regard to the establishment and enforcement of vaccination mandates have done little to improve the already low vaccination rates among college students, further exacerbating the potential for outbreaks [8, 17, 19] .

Vaccination mandates, while most prominently focused on students, have also been used in some work settings. However, our knowledge about vaccination requirements in the workplace is more limited. Most studies have focused on experiences in the healthcare sector and generally show low vaccination rates [20, 21] . Despite the apparent threat to operations, finances, and patients, healthcare providers have generally failed to impose strict mandates on their employees [21] . Tellingly, studies indicate similar hesitancy towards vaccination among the 7 million employees at the nation's 130,000 public schools [22] .

The growth of vaccination mandates in schools and other settings has been supported by a growing body of research indicating their effectiveness as a policy instrument. Most of this work has focused on schools [5, 8, 12, 23] . While the evidence is more limited for the childcare setting, studies seem to confirm findings from K-12 education: vaccination mandates appear to exert a substantial and positive effect on vaccination rates [5, 12] . There is also some evidence that the benefits of school-based mandates extend to the larger community. Indeed, vaccination of school children has been shown to offer significant externalities in the form of lower numbers of community deaths [24] , particularly among the elderly [25] .

While existing evidence indicates that, in general, children exhibit the lowest mortality and complication rates from COVID-19 infections [26] , a significant and rapidly growing number of children have become infected by the coronavirus. By December, almost 1.6 million cases in children had been reported in the United States, and 154 children had died; more than 7,500 had been hospitalized [26] . To make things worse, pandemic-related lockdowns and longdistance learning have created significant amounts of hardships for students, parents, and teachers [27] . While little is known about COVID-19 outbreaks in daycare centers in the United States, more than 321,000 COVID-19 cases have been reported at the nation's college campuses [28] . In view of the large number of asymptomatic cases, these numbers are likely significant undercounts [29] .

While immediate vaccine shortages have focused the public discussion on the appropriate preferences for allocation [3] , long-term success in reigning in the pandemic requires the adoption of proven, evidence-based policy solutions to maximize vaccination rates. This particularly holds true given the aforementioned historical ambivalence, if not hesitancy, among Americans about vaccinations. Indeed, the partisan nature of Americans' perceptions of the pandemic [10, 11] may well exacerbate existing trends towards increasing vaccination hesitancy [30, 31] . Early signs have not been promising in this regard. While the public's willingness to become vaccinated appears to be increasing [32] , without more authoritative policies the nation is unlikely to reach herd immunity levels any time soon.

Given what we know about their effectiveness, vaccination mandates may be a powerful policy instrument to improve vaccination rates once safe and effective vaccines become more widely available. Moreover, mandates may provide important externalities by improving vaccination rates among families with school children, or at least by offering additional protections from COVID-19 transmission between students and their families. These externalities may be particularly important in places like West Virginia where a large number of children living in kinship care arrangements, disproportionally with elderly relatives. However, likely for fear of electoral repercussions, a number of mayors and governors, both Republican and Democratic, have already indicated their unwillingness to mandate vaccinations in schools, and colleges and universities have been rather mute on the issue [33] . Assessing Americans' opinions on vaccination requirements in educational settings thus offers an important opportunity to explore the potential of mandates as policy instruments in the government's arsenal against COVID-19 and other pandemics that may follow .

In order to assess how Americans feel about vaccination mandates across the aforementioned three educational settings, we developed an original survey that was administered through Qualtrics. Respondents were recruited from Lucid's large, online, opt-in panel that provides incentives based on the amount of effort required and the population being sampled.

Overall, 2,404 respondents completed the survey in late October and early November 2020 (a completion rate of 80%). Lucid has been shown to provide high-quality and valid samples for these types of analyses [34, 35] . The approach is particularly valid for experiments and modeling relationships between variables, as we are doing here [34, 35] . While the data are close to national benchmarks, we weighted them on reflect national population benchmarks on gender, race, income, and education based on the U.S. Census 2017 Current Population Survey (see Appendix   Table 1 ).

This study was determined to be exempt from human subjects review by the Pennsylvania State University Institutional Review Board.

The main dependent variables for this analysis were derived from answers to a number of analogous questions about respondents' support for various vaccination mandates for students and teachers and staff. Importantly, we asked respondents about their opinion for three educational settings: (a) daycare, (b) K-12 schools, and (c) universities and colleges. Within each setting, we asked respondents whether students ought to be (1) "fully vaccinated in line with CDC guidelines to be allowed to attend school" and whether they ought to be (2) "vaccinated against COVID-19

to be allowed to attend class in-person" once "a safe and effective vaccine for COVID-19 becomes available." To better gauge the potential effect of COVID-19 on public opinion we also asked about a corresponding vaccination requirement for teachers and staff (3). Specifically, we asked "How about teachers and staff in [setting]? Should they be required to be vaccinated against COVID-19 to be allowed to attend class in-person?" In all cases, we provided respondents with a 5-point scale ("definitely not, "probably not," "might or might not," "probably yes," and "definitely yes"). In total, we thus obtained nine dependent variables: (1) support for general vaccination mandates for students in (a) daycare, (b) K-12 schools, and (c) colleges and universities, (2) support for COVID-19-related vaccination mandates for students in (a) daycare, Several patterns stand out. First, outright opposition to any type of mandate is relatively limited, ranging from about 10 to 20 percent of respondents. Moreover, support ranges from more than 60 percent for general requirements to well over 50 percent for COVID-19 vaccinations. Third, opposition to vaccination requirements is consistently lower for general vaccination requirements as compared to any of the two COVID-19 related ones. The inverse holds for support. Finally, a sizable number of Americans, generally about 20 percent, fall into the middle category.

In our analysis of American public opinion on educational vaccination mandates, we rely on a wide range of explanatory measures. First, partisanship has been a crucial factor shaping the U.S. response to the pandemic as well as public perceptions of it [10, 11, 32] . We thus collected information about respondents' partisanship using Lucid's 10-point scale (4 levels of partisanship for Democrats (Strong Democrat, Not very strong Democrat, Independent Democrat, Other -leaning Democrat) or Republicans (Strong Republican, Not very strong Republican , Independent Republican, Other -leaning Republican) each and 2 for neutral options (Independent -neither, Other -neither)). To facilitate analyses, we collapsed the scale into a 3level measure, i.e. Democrats, Republicans, and non-partisans who serve as the reference category in the analyses below. i We also included a measure of political knowledge in our study [36] . Political knowledge is measured with a standard scale developed from nine questions designed to tap knowledge of the political system. Third, as personal connections have been shown to influence public opinion on a number of health-related issues [36, 37] we included an indicator for whether respondents have non-adult children living with them [38] . Fourth, there has long been a controversy about the appropriate intermingling of education and healthcare in the U.S. [4, 39] . We included respondents' answers to the 5-point-scale-question whether they "believe that schools are the appropriate setting for providing health services." Fifth, respondents personal perceptions of risks related to COVID-19 may influence their support for public policies related to the pandemic [40] . We included two measures to account for this potential: respondents' self-rated health status (a 5-point scale from poor to excellent) and age as well as its squared term to allow for non-linear effects. Sixth, there is evidence that Americans from rural areas may be particularly hesitant to vaccinate [41] . To determine whether respondents lived in rural America, we categorized individuals as rural if they live in a zip code that falls into the rural category based on the U.S. Department of Agriculture's Rural-Urban Commuting Area Codes. Seventh, education levels have been found to affect perceptions about vaccines [38, 42, 43] . We included indicators for High School Graduation, Some College, or College Graduation, with lack of high school graduation serving as the reference category. Eighth, several studies have shown that individuals with lower income may be more likely to oppose vaccinations [13, 38] . Other studies have shown similar effects for higher income individuals, as well [44] . To account for this potentially non-linear effect, we include Household Income and its square (a 24point scale ranging from less than $14,999 to a high of greater than $250,000). Ninth, because there is evidence that women generally perceive greater risks from vaccinations than men, we included a dichotomous measure for gender [45] . Tenth, numerous studies have shown that race and ethnicity may also play important roles in shaping public opinion about vaccines [13] . We thus included indicators for White, Asian, Black or Hispanic respondents. Finally, we also included indicators related to insurance coverage for Medicaid, Medicare, employer-sponsored coverage, and being uninsured. (Descriptive statistics are presented in Appendix Table 2 ).

The analyses below rely on three major analytical approaches. First, we estimated a number of ordinary least squares (OLS) models to assess predictors of support for the three different types of mandates across the three educational settings. Standard tests for outliers and influential observations were satisfactory, and tests for multicollinearity indicated that it was not a problem in our models. Second, we utilized t-tests to assess whether support for vaccination requirements related to COVID-19 was lower than for general vaccination requirements, and whether support differed across educational setting. Third, to analyze whether the effect of partisanship is larger for vaccination requirements related to COVID-19 as compared to general vaccination requirements, we re-estimated a number of models utilizing seemingly unrelated regression (SUR), an approach developed by Arnold Zellner [46] . Joint estimation allows for contemporaneous correlation of errors across equations, and it may thus be more efficient than standard ordinary least square (OLS) regression. More importantly for the analyses here, it allows to statistically compare the effect size of coefficients across equations. We also used OLS to estimate predictors of inconsistency among individuals between general and COVID-19related mandates.

We first assessed the overall predictors of public opinion for the three types of mandates across the three types of educational settings (Table 1) . To do so, we estimated 9 OLS models and included all independent variables described above. We also included indicators for each state to account for state-specific idiosyncrasies that might affect public opinion. Several results stand out. The analyses confirm that Democrats are consistently more supportive of all 9 vaccination mandates as compared to both moderates and Republicans; there is no apparent difference between moderates and Republicans. White Americans are also more likely to support any of the mandates, as do those who think that schools are the appropriate setting for providing health services. Asian Americans show larger support for COVID-19-related requirements. Support is also higher among older Americans. Interestingly, women are more supportive of general mandates but less supportive of COVID-19 related mandates. Finally, there is no effect for rural residents for general vaccination requirements. However, rural residents are less supportive of COVID-19 vaccination mandates for daycare and K-12 for students, as well as for Results are similar for COVID-19 vaccination requirement for teachers and staff. ii

Next, in order to statistically test whether average support for COVID-19-related mandates is lower than for general ones, we estimated a number of t-tests comparing Americans' support for general vaccination requirements for students to COVID-19 vaccination requirements for students (1) and teachers (2) . We also compared COVID-19 vaccination requirements for students to those for teachers (3) across the three educational settings. The results are presented in Table 2 . Most obviously, the results indicate relative consistent support for vaccination requirements ranging from 3.52 to 3.90 on a scale from 1 to 5. The results also indicate that support for general requirements is larger than for any of the two COVID-19 requirements; the results are highly statistically significant and substantive, ranging from 0.22 to 0.37. The data also show that support for imposing mandates on teachers is larger than for imposing mandates on students; however, the differences are substantively small.

To assess potentially differential effects of mandates in daycare, K-12 schools, and colleges and universities, we estimated another series of t-tests comparing the 3 types of vaccination requirements across each educational setting. The results are presented in Table 3 . Once more, the results indicate that public support is largest for general vaccination requirements as compared to those addressing COVID-19. For general requirements, support for student mandates is highest in daycares and lowest for colleges and universities. For COVID-19 student mandates, the analyses find no differences between daycare and K-12 schools while support is highest for post-secondary education. Finally, for teacher and staff mandates, support is highest in daycare and no differences could be discerned among the other two settings. Yet while 7 of the 9 tests have statistically significant findings, the differences are substantively small and never exceed 0.06 on a scale from 1 to 5. In short, the combined findings from Table 2 and Table 3 indicate that the major distinguishing factor is whether the requirements is related to COVID-19, and not the educational setting or whether the mandates address students or teachers and staff.

As has been shown, support for COVID-19 specific vaccination mandates is consistently lower than for general vaccination requirements. This, of course, means that at least some individuals support general vaccination requirements, yet are in opposition to these types of mandates when it comes to COVID-19; at the same time, the opposite may hold for others. And We then estimated a series of OLS models relying on the same independent variables as before (Table 4) .

Once more, partisanship emerges as a significant predictor for all three educational settings. However, the effect appears to be confined to Republicans who are significantly more likely to downgrade their support depending on the target of the mandate. The effect is just above standard levels of significance for colleges and universities. Moreover, higher levels of political knowledge are also associated with reductions in support for mandates, and the reduction in support is smaller for men than women. Respondents with children in their household, on the other hand, are more likely to increase their support for COVID-19 mandates as compared to general mandates. Finally, rural residents are more likely to be less supportive of K-12 mandates.

Finally, to assess whether partisanship has a more substantive effect on public opinion for requirements related to COVID-19 as compared to general ones, we re-estimated the previous OLS models displayed in Table 1 utilizing seemingly unrelated regression (SUR). As mentioned above, this approach allows us to statistically compare the effect size of coefficients across equations. (3) the coefficient for Democrats from the COVID-19 vaccination mandate model to that of the COVID-19 teachers and staff vaccination mandate model). We repeated the process for the coefficient for Republicans. Next, we analogously compared partisanship for the K-12 and university setting. Finally, we repeated the process once more across educational settings.

Several findings stand out. First, partisanship has no differential effect across educational setting, as all p-values are highly insignificant (bottom results). That is, the effect of partisanship does not differ between daycare and K-12 schools, daycare and universities, and K-12 schools and universities. Second, Republican partisanship exerts a larger effect on COVID-19 related requirements as compared to the general mandates in daycare and K-12 schools. For colleges and universities, the p-value is just above standard levels of statistical significance. The finding that partisanship exerts a more substantive effect on COVID-19 mandates as compared to general requirements is further supported by the fact that the results are not statistically significant for comparisons between COVID-19 requirements between teachers and staff and students (third column). In short, COVID-19 has increased the effect of partisanship among Republican, but not Democratic, partisans with regard to daycare and K-12 schools.

We administered a large national survey to assess American's attitudes towards vaccination requirements across three educational settings (daycare, K-12 schools, and colleges and universities) in general and for COVID-19 specifically. To our knowledge, the analyses presented above are the first major assessments of public opinion of this type. Overall, support for vaccination mandates is relatively high, yet drops substantially for a potential COVID-19related requirement. Even then, more than 50 percent of Americans support such a mandate.

Partisanship, gender, race, rurality, and perceptions about the appropriate role schools should play in providing health services are substantive predictors of public opinion. The effect of partisanship is accentuated for COVID-19 requirements as compared to general requirements and drop off in support between general and COVID-19 specific requirements are driven by partisanship, gender, political knowledge, and having children in the household.

The findings hold important policy implications that can inform policymakers' decisions as we move to reign in the current pandemic as well as pandemics that occur in the future. For one, the findings should encourage policymakers to strongly consider imposing this evidencebased policy supported by a majority of Americans. At the same time, efforts to provide Americans with more information about the safety and effectiveness of the vaccines should be undertaken to alleviate valid fears. Third, national and state Republican leaders should spearhead campaigns to specifically target Republican partisans. In view of his continued support among Republicans, former President Trump would be an incredible asset to these efforts. Fourth, efforts should also target women because they make roughly 80 percent of the healthcare decisions for their children [47] , as well as ethnic and racial minorities who have been disproportionately affected by the pandemic and would likewise disproportionally benefits from vaccinations. However, there seems to be little investments in these efforts so far, despite the fact that minorities are more skeptical of the vaccine [48] . Finally, all possible efforts should be undertaken to reduce and eliminate potential barriers for vaccinations. In addition to providing the vaccine free of charge, policymakers ought to consider ways to reduce the personal cost of getting vaccinated. This includes the ease of scheduling appointments, avoiding long travel times, and offering convenient opening hours. School-based vaccination campaigns [49] as well as school-based health centers [50] have proven their effectiveness in this regard.

To be sure, requiring children, teachers, and staff to be vaccinated impedes on their personal freedom. Yet a slew of public health interventions already do. Most states mandate motorcycle helmets and seat belts. Of course, states already require a number of vaccinations for school entry, and some states, like West Virginia and California, allow but few exemptions.

Notably, as the existing literature on vaccination rates in school settings and beyond has shown, education-only requirements [8] and recommendations [5] have only limited effects. Conversely, vaccination mandates have proven that they can be an important arrow in the nation's public health quiver. However, as the experience from California's recent strengthening of vaccination mandates illustrates [51] , enforcement of mandates and monitoring of displacement effects is crucial. Of course, other strategies like monetary incentives [13] and social media and information campaigns [23, 30, 52] (2016). Preference is given to CPS considering its sample size and representativeness, but make use of weighted ANES data whenever it was not possible to use CPS (i.e. CPS does not ask questions about Party ID). Weights in column two adjust for gender, education, race, age, and income. Party ID is not included in the weighting formula, and is shown only due to the potential interests of those who might use or otherwise consume this data. N (Survey Data) = 2,404 ii We also developed two additive measures to assess the cumulative support for vaccination mandates. For the first measure, we added up the responses for all 9 requirement-related measure (Cronbach's alpha 0.95); for the second one we only add those 6 requirements affecting students (Cronbach's alpha 0.91). We then estimated two OLS models with the same independent variables as before. As in previous analyses, partisanship emerges as statistically and substantively significant across models (Appendix Table 3 ). That is, Democrats are more supportive of mandates overall than moderates or Republicans; there is no difference between moderates and Republicans. Similarly, Whites and older Americans are also consistently more supportive while the opposite holds for the uninsured.

I have no conflicts to declare.

Most Americans Say Coronavirus Outbreak Has Impacted Their Lives

Health Equity, Social Policy, and Promoting Recovery from COVID-19. J Health Polit Policy Law

US Adults' Preferences for Public Allocation of a Vaccine for Coronavirus Disease

State Laws on Compulsory Immunization in the United States

Associations of Daycare and School Entry Vaccination Requirements with Varicella Immunization Rates

The Impact of College Prematriculation Immunization Requirements on Risk for Measles Outbreaks

Personal Belief Exemptions from School Vaccination Requirements. Annual Review of Public Health

Middle School Vaccination Requirements and Adolescent Vaccination Coverage

Parents' Support For School-Entry Requirements for Human Papillomavirus Vaccination: A National Study

The Emergence of COVID-19 in the US: A Public Health and Political Communication Crisis. J Health Polit Policy Law

From Poor to Worse: Health Policy and Politics Scholars' Assessment of the U.S. COVID-19 Response and Its Implications

Status of School Entry Requirements for Varicella Vaccination and Vaccination Coverage 11 Years After Implementation of the Varicella Vaccination Program

Infectious Disease: Increases in Vaccination Coverage For Children in Child Care

The Immunization System in the United States: The Role of School Immunization Laws

Mandating COVID-19 Vaccines

How Colleges Intervene to Increase Student Body Vaccination Coverage

Evaluating Variability in Immunization Requirements and Policy Among US Colleges and Universities

Mumps Vaccination Coverage and Vaccine Effectiveness in a Large Outbreak Among College Students-Iowa

US College and University Student Health Screening Requirements for Tuberculosis and Vaccine-Preventable Diseases

Requiring Influenza Vaccination for Health Care Workers: Seven Truths We Must Accept

Mandatory Influenza Vaccination of Healthcare Workers: A 5-Year Study

Vaccination Perceptions of School Employees in a Rural School District

Evidence-Based Strategies to Increase Vaccination Uptake: A Review

Modification of an Outbreak of Influenza In Tecumseh, Michigan by Vaccination of Schoolchildren

The Japanese Experience With Vaccinating Schoolchildren Against Influenza

When Adolescents are in School during COVID-19, Coordination Between School-Based Health Centers and Education is Key

Estimating the Asymptomatic Proportion of Coronavirus Disease 2019 (COVID-19) Cases on Board the Diamond Princess Cruise Ship

Addressing Parents' Vaccine Concerns: A Randomized Trial of a Social Media Intervention

Understanding Vaccine Hesitancy Around Vaccines and Vaccination From a Global Perspective: A Systematic Review of Published Literature

Intent to Get a COVID-19 Vaccine Rises to 60% as Confidence in Research and Development Process Increases

College campuses drove major COVID-19outbreaks. Now, will they require thevaccine?

Validating the Demographic, Political, Psychological, and Experimental Results Obtained from a New Source of Online Survey Respondents

Evaluating Online Nonprobability Surveys

Lingering Legacies: Public Attitudes About Medicaid Beneficiaries and Work Requirements. J Health Polit Policy Law

Social Stigma Toward Persons With Prescription Opioid Use Disorder: Associations With Public Support for Punitive And Public Health-Oriented Policies

Parental Hesitancy About Routine Childhood and Influenza Vaccinations: A National Survey

Provision of Contraception in New York City School-Based Health Centers: Impact on Teenage Pregnancy and Avoided Costs

Predictors of Mortality In Patients With COVID-19-A Systematic Review

Real Progress Is Possible On Vaccine Hesitancy

Knowing Less But Presuming More: Dunning-Kruger Effects and the Endorsement of Anti-Vaccine Policy Attitudes

Uptake of Meningococcal Vaccine in

Arizona Schoolchildren After Implementation of School-Entry Immunization Requirements

Affluence as a Predictor of Vaccine Refusal and Underimmunization in California Private Kindergartens

The Influence of Political Ideology and Trust on Willingness to Vaccinate

An Efficient Method of Estimating Seemingly Unrelated Regressions and Tests for Aggregation Bias

Kaiser Family Foundation. Women, Work, and Family Health: Key Findings from the 2017

Kaiser Women's Health Survey

Vaccinating Black Americans Is Essential. Key States Aren't Doing the Work to Combat Hesitancy

Statewide School-Located Influenza Vaccination Program for Children 5-13 Years of Age

Completion And Timing of the Three-Dose Human Papillomavirus Vaccine Series Among Adolescents Attending School-Based Health Centers In Oregon

Elimination of Nonmedical Immunization Exemptions in California and School-Entry Vaccine Status

Efficacy of a Web-Based Intervention to Increase Uptake of Maternal Vaccines: An RCT

All analyses were repeated with different partisanship scales with analogous results. Because some of the hypotheses require splitting out partisanship into individual category