Bullied preadolescents score lower than matched non-bullied peers on reading, processing speed, and inhibitory control/attention over two years¶

Claim · All claims
Evidence · 1 study (2 entries) · associational r2–r3 · q3 · i1 small
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i1 Bullied children had significantly lower reading (d = -0.33), processing speed (d = -0.31), and inhibitory control and attention (d = -0.20) scores than matched non-bullied children. → Menken Miriam S. 2023 q3 i? No group differences were found on crystallized composite, episodic memory, or vocabulary comprehension scores. → Menken Miriam S. 2023 (2)

Evidence¶

Menken Miriam S. 2023¶

Menken Miriam S., Rodriguez Rivera Pedro J., Isaiah Amal, Ernst Thomas, Cloak Christine C., Chang Linda. (2023). Longitudinal alterations in brain morphometry mediated the effects of bullying victimization on cognitive development in preadolescents. Developmental Cognitive Neuroscience. https://doi.org/10.1016/j.dcn.2023.101247

q3 · i1 · associational · r3

Linear mixed-effects models on the matched ABCD sample (323 bullied vs 322 non-bullied, ages ~9.9 years at baseline, two annual visits) with covariates including sex, age, race/ethnicity, income, CBCL scores, BMI and ICV. The article reports "lower scores than non-bullied children" with the printed Cohen's d values and CIs above.

"bullied children had lower scores than non-bullied children on reading (emmeans Cohen’s d effect size (d) = −0.33, [95% Confidence Interval (CI), —0.66 to —0.01; P = 0.046), processing speed (d= −0.31, [95% CI, —0.53 to —0.08]; P = 0.008), and inhibitory control and attention (d= −0.20, [95% CI, —0.38 to —0.02]; P = 0.030)"

Menken Miriam S. 2023 (2)¶

Menken Miriam S., Rodriguez Rivera Pedro J., Isaiah Amal, Ernst Thomas, Cloak Christine C., Chang Linda. (2023). Longitudinal alterations in brain morphometry mediated the effects of bullying victimization on cognitive development in preadolescents. Developmental Cognitive Neuroscience. https://doi.org/10.1016/j.dcn.2023.101247

q3 · i? · associational · r2

Same matched longitudinal LMM analysis of NIH Toolbox scores. The article reports no statistically significant group differences on the crystallized composite, episodic memory, or vocabulary measures; equivalence was not tested.

"No group differences were found between bullied and non-bullied children in scores on crystallized cognition composite (P = 0.14), episodic memory (P = 0.67), and vocabulary comprehension (P = 0.51; Table S3)."

Discussion¶

Related Claims¶

• Bullied preadolescent children have lower cognitive scores than non-bullied peers — a broader claim this one bears on
• Bullied preadolescent children have poorer academic grades than non-bullied peers — related
• Bullied preadolescents show larger cortical volumes in left entorhinal, left superior parietal, and right fusiform regions than matched non-bullied peers
• Bullied preadolescents show thinner cortices in left-hemisphere temporal, precentral, and right rostral middle frontal regions, and precentral thinning mediates 7% of the bullying effect on inhibitory control/attention — related
• Sex moderates bullying-related cognitive and brain differences, with effects in boys and girls appearing in different regions and tasks — related
• Bullied girls show lower episodic memory and crystallized composite cognitive scores than non-bullied girls — related
• Bullying involvement is associated with lower academic achievement (pooled OR = 0.61) — a broader claim this one bears on
• Bullied preadolescent children show greater behavioral problems across CBCL domains than non-bullied peers — related
• Caregiver-reported bullying victimization is associated with higher odds of NSSI/passive suicidality and active suicidality in preadolescent children — related
• Peer victimization is associated with more school absences and lower grades and achievement among school-aged students — a broader claim this one bears on