A planned contrast showed coached and uncoached at-risk GPA trends diverged in different directions beginning at the onset of coaching¶

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

Subclaims¶

q3 i? The COHORT by TIME interaction at the start of 9th grade was highly significant and showed trends for coached and uncoached at-risk students going in different directions, beginning at the onset of coaching. → Zeller 2013

q3 i? The COHORT by TIME interaction effect capturing the central hypothesis was statistically significant (Wald χ2 df=15 = 150.33, p < .0001). → Zeller 2013

Evidence¶

Zeller 2013¶

Zeller, P. J., Carpenter, S., Lacefield, W. E., & Applegate, E. B. (2013). Graduation coaching in a rural district school. GEAR UP Learning Centers, Western Michigan University. https://eric.ed.gov/?id=EJ1033208

q3 · i?

Planned contrast at the middle-school-to-high-school transition comparing coached versus uncoached at-risk students' GPA trajectories. The contrast was "highly significant" and located the effect at the start of coaching.

"This also was highly significant (Wald χ2 df=1 = 22.84, p < .0001) and showed (1) that the trends for at-risk students who were coached and those who were not coached go in different directions and (2) that this effect begins at the onset of coaching."

Discussion¶

Related Claims¶

• Coached at-risk 9th-grade students earned almost a full letter grade higher in core-course GPA than comparable uncoached baseline students — related