Mediation hypothesis not confirmed: indirect effects of City Connects through grade 5 academic and non-cognitive skills are not significantly different from zero¶
Claim · All claims
Evidence · 1 study · causalr2·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? Aroian Sobel tests found the indirect effects of City Connects on grade 8 mathematics through grade 5 math, reading, writing, and effort scores were not significantly different from zero, contrary to the original hypothesis. → O'Dwyer 2016
Evidence¶
O'Dwyer 2016¶
O'Dwyer, L. M., Lee-St. John, T., Raczek, A. E., Luna Bazaldua, D. A., & Walsh, M. (2016). Examining the role of early academic and non-cognitive skills as mediators of the effects of City Connects on middle school academic outcomes. SREE Spring 2016 Conference. https://eric.ed.gov/?id=ED567236
q3 · i? · causal · r2
Multilevel mediation analysis (Models 1-3) with Aroian Sobel tests of indirect effects in the Boston Public Schools sample. The article reports the indirect effects "are not significantly different from zero" for all hypothesized mediators.
"Against our original hypothesis, these results indicate that the indirect effect of City Connects on mathematics achievement through the grade 5 academic measures and through effort are not significantly different from zero."
Discussion¶
Related Claims¶
- Each year of City Connects dosage predicts small significant increases in grade 5 math, reading, writing, and effort scores — related
- 10.4% of grade 8 mathematics score variability lies between schools and is predicted by City Connects participation — related
- Grade 5 academic and non-cognitive skills are positive predictors of grade 8 mathematics scores — related
- City Connects participation is associated with a 0.15 SD advantage in grade 8 mathematics achievement — related
- Motivation's effect on later mathematical performance is indirect, mediated by executive functioning and early numeracy skills — related
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