Junior secondary students taught Technical Drawing with PowerPoint presentation achieved significantly higher posttest scores than students taught with chalkboard instruction¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q2
Currency · newest study 2015 · checked against its sources 2026-11-01 (automated, 2 of 2 entries) · not reviewed by a person

Subclaims¶

q2 i? After controlling for pretest scores, the method of instruction produced a significant effect on achievement, with the PPT group outperforming the chalkboard group. → Gambari 2015 q2 i? Despite higher posttest means for PPT, the chalkboard group had a higher mean gain score (53.60) than the PPT group (50.22). → Gambari 2015 (2)

Evidence¶

Gambari 2015¶

Gambari, A. I., Yusuf, H. T., & Balogun, S. A. (2015). Effectiveness of PowerPoint Presentation on Students' Cognitive Achievement in Technical Drawing. Malaysian Online Journal of Educational Technology, 3(4). https://eric.ed.gov/?id=EJ1085923

q2 · i? · causal · r2

Quasi-experimental pretest-posttest non-equivalent group study of 100 JSS 1 students in two Abuja schools, analyzed with ANCOVA controlling for pretest. The article reports "F(1, 91) = 11.039, p = 0.001" for the treatment main effect favoring PPT over chalkboard.

"Table 3 shows that F(1, 91) = 11.039, p = 0.001 for the main effect (treatment) was significant, indicating that the method of instruction produced a significant effect on the achievement scores of students when covariate effect (pre -test) was controlled."

Gambari 2015 (2)¶

Gambari, A. I., Yusuf, H. T., & Balogun, S. A. (2015). Effectiveness of PowerPoint Presentation on Students' Cognitive Achievement in Technical Drawing. Malaysian Online Journal of Educational Technology, 3(4). https://eric.ed.gov/?id=EJ1085923

q2 · i? · causal · r2

Descriptive mean gain comparison from the same quasi-experiment: pretest-posttest gains were 53.60 for chalkboard versus 50.22 for PPT, even though PPT had the higher posttest mean. No significance test is reported for the gain difference.

"Table 3 shows Chalkboard group (CB) had higher mean gain score of 53.60; followed by PowerPoint Presentation (PPT) with mean gain scores of 50.22."

Discussion¶

Related Claims¶

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