Special education and violence variables relate to academic achievement, with absence of reading disability (ES = 1.266) showing very large effects and peer victimization (ES = -.292) a medium negative effect¶

Claim · All claims
Evidence · 1 study (2 entries) · quant-synthesis r1–r2 · q3 · i2–i3
Currency · newest study 2021 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i3 Being without reading disability (ES = 1.266) has very large effects on academic achievement. → Koçak 2021 q3 i2 Peer victimization (ES = -.292), physically aggressive or violent behavior (ES = -.289) and cyber-victimization (ES = -.283) have medium negative effects on academic achievement. → Koçak 2021 (2)

Evidence¶

Koçak 2021¶

Koçak, Ö., Göksu, İ., & Göktaş, Y. (2021). The factors affecting academic achievement: a systematic review of meta analyses. International Online Journal of Education and Teaching, 8(1), 454-484. https://eric.ed.gov/?id=EJ1286675

q3 · i3 · quant-synthesis · r2

Systematic review of meta-analyses: 16 special education variables and 30 effect sizes from 15 meta-analyses (Table 9). The review reports that "without reading disability (ES= 1.266) has very large effects" and is the variable with the biggest number of overall ESs (OES=5).

"According to Table 9, without reading disability (ES= 1.266) has very large effects."

Koçak 2021 (2)¶

Koçak, Ö., Göksu, İ., & Göktaş, Y. (2021). The factors affecting academic achievement: a systematic review of meta analyses. International Online Journal of Education and Teaching, 8(1), 454-484. https://eric.ed.gov/?id=EJ1286675

q3 · i2 · quant-synthesis · r1

Systematic review of meta-analyses: 6 violence variables and 10 effect sizes from 6 meta-analyses (Table 10). The review reports that "peer victimization (ES= -.292), physically aggressive or violent behavior (E S= -.289) and cyber -victimization (ES= -.283)" had the highest effects, all medium and negative.

"the variables with the highest effects were peer victimization (ES= -.292), physically aggressive or violent behavior (E S= -.289) and cyber -victimization (ES= -.283)."

Discussion¶

Learner Variables¶

• Safety — predictor: learners who differ on it differ in outcomes

Related Claims¶

• Across 169 meta-analyses, 254 variables with 427 effect sizes influence academic achievement; most variables have small or very small effects and none has a large, very large or huge negative effect — a broader claim this one bears on
• SES and individual-characteristic variables relate to academic achievement, with grade retention (ES = 1.616) and college admissions test (ES = 1.416) showing very large effects and procrastination a small negative effect (ES = -.357) — related
• Peer victimization is associated with more school absences and lower grades and achievement among school-aged students — related
• Identity- or bias-based harassment shows negative social-emotional and academic consequences over and above general victimization — related