Lower-SES and higher-SES adolescents did not significantly differ on probabilistic classification learning¶
Claim · All claims
Evidence · 2 studies · 2 associationalr1–r2·q3
Currency · newest study 2015 · 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? Planned post-hoc comparisons showed no significant difference between lower-SES (M = 0.08) and higher-SES (M = 0.06) groups on procedural memory learning score (p = 0.76). → Leonard JA 2015
q3 i? Both SES groups showed learning across epochs on the probabilistic classification task, with no significant main effect of SES group and no epoch by SES interaction. → Leonard JA 2015 (2)
Evidence¶
Leonard JA 2015¶
Leonard JA, Mackey AP, Finn AS and Gabrieli JDE (2015) Differential effects of socioeconomic status on working and procedural memory systems. Front. Hum. Neurosci. 9:554. https://doi.org/10.3389/fnhum.2015.00554
q3 · i? · associational · r2
Post-hoc linear model comparison of procedural memory learning scores (last 25 vs. first 25 trials) among 19 lower-SES and 28 higher-SES adolescents who completed the task. The groups "did not significantly differ" (p = 0.76); no effect size was printed, so equivalence was not tested.
"the lower-SES group and higher-SES group did not significantly differ on their procedur al memory learning score [lower-SES: M = 0.08, SD = 0.22; higher- SES: M = 0.06, SD = 0.19; b = 0.02, t(44) = 0.31, p = 0.76, r2 = −0.04, 95% CI [ −0.11, 0.14]"
Leonard JA 2015 (2)¶
Leonard JA, Mackey AP, Finn AS and Gabrieli JDE (2015) Differential effects of socioeconomic status on working and procedural memory systems. Front. Hum. Neurosci. 9:554. https://doi.org/10.3389/fnhum.2015.00554
q3 · i? · associational · r1
Repeated measures ANOVA on optimal performance across four 25-trial epochs showed a significant main effect of epoch (F(3,135) = 3.42, p = 0.02, η2 = 0.07), demonstrating learning, but "no significant main effects of SES group" and no epoch by SES interaction (p = 0.91).
"a repeated measures ANOV A on optimal performance over the four epochs (25 trials per epoch) showed a significant main effect of epoch, demonstrating learning during the probabilist ic classification task [ F(3,135) = 3.42, p = 0.02, η 2 = 0.07], but no significant main effects of SES group"
Discussion¶
Related Claims¶
- Working memory capacity is significantly smaller in lower-SES than higher-SES adolescents — related
- Lower-SES adolescents have smaller hippocampal and DLPFC volumes but do not differ in caudate volumes — related
- Exploratory ROI volume–behavior correlations within SES groups did not survive FDR correction — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
no-ses-difference-probabilistic-classification |
title |
Lower-SES and higher-SES adolescents did not significantly differ on probabilistic classification learning |
description |
Lower-SES and higher-SES adolescents did not significantly differ on probabilistic classification learning |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2015 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
2 — leonard-ja-2015, leonard-ja-2015-2 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.