The posttest advantage of the experimental section remained significant when posttest scores were covaried against pretest scores¶

Claim · All claims
Evidence · 1 study · causal r1 · q3
Currency · newest study 2013 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? An analysis of covariance with pretest scores as covariate showed a significant difference between sections on the posttest. → Cappetta 2013

Evidence¶

Cappetta 2013¶

Cappetta, R.W., and Zollman, A. (2013). Agents of Change in Promoting Reflective Abstraction: A Quasi-Experimental Study on Limits in College Calculus. REDIMAT – Journal of Research in Mathematics Education, 2(3), 343-357. https://doi.org/10.4471/redimat.2013.35

q3 · i? · causal · r1

Analysis of covariance on all students' posttest scores covaried against pretest scores; the Section Type effect was F = 6.40, p = .017, significant at p < .05. No effect size is printed for this analysis.

"In or der to minimize differences that might be due to previous knowledge, an anal ysis of covariance is included. The posttest scores are covaried against the pretest scores. The results are F = 6.40, p = .017."

Discussion¶

Related Claims¶

• ANCOVA confirms the multimedia group's speaking-skill advantage after adjusting for pre-test differences. — possibly the same claim (merge candidate)
• First-semester calculus students in an experimental reflective-abstraction section outperformed a matched traditional section on a posttest of limits — possibly the same claim (merge candidate)