To comprehend texts readers build mental representations. To establish coherence and protect these representations against inaccuracies readers routinely monitor and validate textual information... Show moreTo comprehend texts readers build mental representations. To establish coherence and protect these representations against inaccuracies readers routinely monitor and validate textual information against two main informational sources –what they just read (the text itself) and what they know (their background knowledge). This dissertation focuses on validation processes in the context of reading comprehension. Texts today vary in accuracy and trustworthiness. To better understand how readers validate (written) materials against various sources of information, the experimental studies in this dissertation employed different research methods to examine the (neuro)cognitive architecture of the processes involved in validating against prior text (i.e., text-based validation) and validating against background knowledge (i.e., knowledge-based validation) and how these processes affect readers;’ memory for text information.Results illustrate that readers validate incoming information against these two sources in dissociable, (partially) interactive, text-based and knowledge-based validation processes. Moreover, these processes seem to protect readers’ memory against inaccuracies or incongruencies. These observations deepen our understanding of validation processes, provide starting points for investigations of people’s susceptibility to false information and how inaccurate knowledge can be revised and provide insight into the complex interplay between recently acquired knowledge from the text itself and background knowledge in constructing meaning from language. Show less
This dissertation focused on teachers’ comprehension of student progress graphs from a progress-monitoring system called Curriculum-based Measurement (CBM). CBM is designed for teachers to... Show moreThis dissertation focused on teachers’ comprehension of student progress graphs from a progress-monitoring system called Curriculum-based Measurement (CBM). CBM is designed for teachers to monitor the progress of students with learning disabilities and to evaluate instructional effectiveness for these students (Deno, 1985, 2003). Within CBM, short measures are administered to students frequently, and scores on those measures are depicted in individual progress graphs. Teachers inspect the graphs to evaluate student progress and effects of instruction. When teachers use CBM to monitor student progress and when they respond to the data by making instructional changes, student achievement improves; however, teachers often do not use the data (Stecker, Fuchs, & Fuchs, 2005). One potential reason might be that teachers have difficulty reading and interpreting the graphs. This dissertation focused on teachers’ ability to read and interpret – to comprehend – CBM graphs. We employed think-aloud and eye-tracking methodologies to examine how teachers described and inspected CBM graphs. We also examined approaches for improving teachers’ CBM graph comprehension. Results revealed that teachers experience difficulties with inspecting CBM graphs, and with reading, interpreting, and linking CBM data to instruction, but that teachers’ CBM graph comprehension can be improved via relatively short CBM instructional videos. Show less