Claims

STAC intervention students showed a trend toward decreased anxiety relative to wait-list control students (p = .06)

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2016 · not yet checked against its sources · not reviewed by a person

Subclaims

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q3 i? The Time x Group interaction for anxiety approached significance, with intervention students decreasing and control students increasing in anxiety from baseline to 30-day follow-up. → Midgett 2016

Evidence

Midgett 2016

Midgett, A., Doumas, D., Trull, R., & Johnston, A. (2016). A Randomized Controlled Study Evaluating a Brief, Bystander Bullying Intervention with Junior High School Students. Boise State University. https://eric.ed.gov/?id=EJ1146195

q3 · i? · causal · r2

GLM repeated measures ANOVA using the BASC-3 SRP-A Anxiety scale (sample α = .91) in the randomized controlled study. As seen in Table 1, "students in the intervention group reported a decrease in anxiety, whereas students in the control group reported an increase in anxiety."

"results of the GLM repeated measures ANOVA indicated a trend toward significance for the interaction effect Time x Group for anxiety, Wilks' Lambda = .39, F(1, 51) = 3.62, p = .06, η 2 p = .07. Examination of the η 2 p indicates the effect size approached the medium range."

Discussion

Learner Variables

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