Video coverage declined significantly after the preview, and reviews were viewed more fully than second demonstrations¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3 · i2–i3
Currency · newest study 2018 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i3 Coverage declined significantly from previews to first demonstrations, F(1,62) = 76.8, p < 0.001, d = 1.21, with no main effect of condition and no interaction. → Hans van der Meij 2018 q3 i2 An ANCOVA comparing reviews and second demonstrations showed reviews yielded moderately higher coverage, F(1,39) = 6.7, p = 0.013, d = 0.57. → Hans van der Meij 2018 (2)

Evidence¶

Hans van der Meij 2018¶

Hans van der Meij, Jan van der Meij, Tessa Voerman, Evert Duipmans. (2018). Supporting motivation, task performance and retention in video tutorials for software training. Education Tech Research Dev 66, 597–614. https://doi.org/10.1007/s11423-017-9560-z

q3 · i3 · causal · r2

Repeated measures ANOVA on log-based coverage (percentage of video seconds played) for previews versus first demonstrations across the three conditions. Coverage was lower for first demonstrations than previews; there was no main effect of condition and no interaction.

"A repeated measures ANOVA with condition as independent variable, and previews and first demonstrations as the two measurement points, showed a significant decline over time, F(1,62) = 76.8, p \ 0.001, d = 1.21."

Hans van der Meij 2018 (2)¶

Hans van der Meij, Jan van der Meij, Tessa Voerman, Evert Duipmans. (2018). Supporting motivation, task performance and retention in video tutorials for software training. Education Tech Research Dev 66, 597–614. https://doi.org/10.1007/s11423-017-9560-z

q3 · i2 · causal · r2

ANCOVA on log-based coverage for the two experimental conditions, covarying preview and first-demonstration coverage. "Reviews yielded moderately higher video coverage than second demonstrations" (means 42.5% vs 27.5%).

"An ANCOVA comparing reviews and second demonstrations, with preview and first demonstration coverage as covariates, indicated a significant effect of condition, F(1,39) = 6.7, p = 0.013, d = 0.57."

Discussion¶

Related Claims¶

• Total coverage differed by condition, with the 2-demo tutorial viewed less fully than the control and review tutorials — related
• Adding reviews or a second demonstration did not significantly improve self-efficacy or learning over the control condition — related