Each kind of textual change selectively aids recall of the idea units it itself highlights¶

Claim · All claims
Evidence · 1 study · causal r2 · q2
Currency · newest study 1998 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? In recall, only coherence increased the percentage of idea units emphasized by topical expressions, and only linking increased the percentage recalled with additional information. → Vidal-Abarca 1998

Evidence¶

Vidal-Abarca 1998¶

Vidal-Abarca, E., & Sanjosé, V. (1998). Levels of comprehension of scientific prose: The role of text variables. Learning and Instruction, 8(3), 215-233. https://www.sciencedirect.com/science/article/abs/pii/S0959475297000200

q2 · i? · causal · r2

Complementary 2x2 ANOVAs (Table 2) on percentages of recalled idea units highlighted by topical expressions or accompanied by additional information. For additional information "the only significant effect came from the linking procedures, F(1,62)=4.051, MSE=190.534".

"Withrespecttothepercentageof idea-unitsemphasizedbytopicalexpressions, onlythemaineffectof coherencewassignificant, F(1,62)=7.572, p<.01, MSE=415.808."

Discussion¶

Related Claims¶

• Coherence textual changes improve tenth graders' main-idea performance on a scientific text — related
• The revised coherence version measurably increased textual coherence on two quantitative indices — related
• Neither textual change significantly improves recall of low-level idea units, contradicting the recall hypothesis — related