Both the control and treatment groups improved significantly in accuracy of multiplication fact answers from pretest to posttest¶

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2017 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2022: baselines and conditions change

Subclaims¶

q2 i? Both groups reached statistical significance on pre- to posttest accuracy scores (control t(13) = -3.41, p < .025; treatment t(13) = -2.81, p < .025). → Letwinsky 2017

Evidence¶

Letwinsky 2017¶

Letwinsky, K. M., & Berry, M. D. (2017). Technology Integration and the Effect on Mathematics Fact Fluency in the Middle East. Journal of International Education and Leadership, 7(1). https://eric.ed.gov/?id=EJ1153618

q2 · i? · causal · r1

Within-subject paired t-tests from the repeated measures analysis in the Findings section. The control group's score significance (t(13) = -3.41, p < .025) is reported in the same passage; only test statistics are printed, with no effect size for accuracy.

"Similarly, the treatment group improved significantly on pre - and posttest scores ( t(13) = -2.81, p < .025), howe ver, a significant change in completion time was not evident for the treatment group ( t(13) = 1.50, p > .025)."

Discussion¶

Learner Variables¶

• Arithmetic Fact Retrieval — outcome: instruction changes it

Related Claims¶

• Posttest accuracy scores did not differ significantly between the treatment and control groups — related
• The control group improved significantly in completion speed from pretest to posttest while the treatment group showed no significant speed improvement — related
• Gain-score MANOVA shows a significant between-group difference in multiplication fact fluency favoring the control group on completion time, with a large multivariate effect size — related
• Control-group pre-K children showed no statistically significant change on either measure over the ten-week period — related