id author title date pages extension mime words sentence flesch summary cache txt df65v694z2t Caitlin Spencer Mills How Do Extrinsic Value and Text Difficulty Impact Engagement during Learning? An Experimental Approach 2014 .txt text/plain 152 8 37 The current experiment attempted to address this question by investigating the effects of both extrinsic value (high vs. low value) and text difficulty (easy vs. difficult texts) on engagement and learning during an instructional learning task. Results indicated that extrinsic value and text difficulty impacted the two types of engagement differently. cache/df65v694z2t.txt txt/df65v694z2t.txt