Heuristic worked examples improve fifth graders' modeling-specific strategy knowledge at posttest, but the effect fades by follow-up¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3 · i2 medium
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 Fifth graders in the worked example conditions showed better modeling-specific strategy knowledge than control students at posttest (part. η² = .06). → Hänze 2022 q3 i? The fifth-grade strategy knowledge treatment effect was no longer significant at the eight-week follow-up (part. η² = .02). → Hänze 2022 (2)

Evidence¶

Hänze 2022¶

Hänze, M., & Leiss, D. (2022). Using heuristic worked examples to promote solving of reality-based tasks in mathematics in lower secondary school. Instructional Science. https://doi.org/10.1007/s11251-022-09583-8

q3 · i2 · causal · r2

Randomized field experiment with 134 fifth graders assigned to control, worked example, or prompted worked example conditions; ANCOVA on posttest strategy knowledge with pretest covariates found the worked example conditions outperformed control, "part. η2 = .06".

"Strategy knowledge was affected by the treatment at posttest measurement, F(2,128) = 4.18, p < .05, part. η2 = .06. Contrast Cworked-examples showed that students in the worked examples conditions had better strategy knowledge than students in the control condition (p < .01) at posttest."

Hänze 2022 (2)¶

Hänze, M., & Leiss, D. (2022). Using heuristic worked examples to promote solving of reality-based tasks in mathematics in lower secondary school. Instructional Science. https://doi.org/10.1007/s11251-022-09583-8

q3 · i? · causal · r2

In the same fifth-grade ANCOVA, the strategy knowledge treatment effect was not significant at the approximately eight-week follow-up, with only "part. η2 = .02" reported; equivalence was not tested.

"At follow-up measurement the treatment effect was no longer significant, F(1,121) = 1.40, p > .20, part. η2 = .02)."

Discussion¶

Related Claims¶

• Seventh graders' treatment effects fade by follow-up, with only the strategy knowledge contrast remaining significant — related
• Heuristic worked examples improve seventh graders' modeling competency and strategy knowledge at posttest — related
• Heuristic worked examples do not improve fifth graders' mathematical modeling competency — related
• Adding self-explanation prompts to heuristic worked examples yields no additional benefit and impedes seventh graders' modeling competency — related