Delaying tracking is associated with a larger genetic influence especially among low-performing students, supporting the compensation hypothesis (H2b)¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? The difference in unique genetic effects on attainment between immediate and delayed tracking is absent for high performers but much larger for low performers. → Antonie Knigge 2022

Evidence¶

Antonie Knigge 2022¶

Antonie Knigge, Ineke Maas, Kim Stienstra, Eveline L. de Zeeuw and Dorret I. Boomsma. (2022). Delayed tracking and inequality of opportunity: Gene-environment interactions in educational attainment. npj Science of Learning 7:6. https://doi.org/10.1038/s41539-022-00122-1

q2 · i? · associational · r2

Model 2 moderation analysis (N = 8847) plotting unique genetic, shared and non-shared environmental variances of attainment by CITO performance for each tracking group (Fig. 2). The article reports the genetic difference is "absent for high performers but much larger for low performers", contrary to H2a and in line with H2b.

"The top and bottom left graph show that the difference in unique genetic effects on attainment between immediate and delayed tracking is absent for high performers but much larger for low performers."

Discussion¶

Related Claims¶

• The association between delayed tracking and larger genetic influence is driven mostly by reduced primary effects (influences common to performance and attainment), not secondary effects — related
• Delaying definite tracking is associated with a larger genetic influence and a lower shared-environmental influence on secondary educational attainment among Dutch twins — possibly the same claim (merge candidate)
• In a genetically informed twin study, the effect of shared family environment was substantially reduced among twins whose tracking was delayed until a later age — related
• A large share of the genetic influence on secondary-school attainment is due to genes that did not influence primary-school performance — related
• The chance of delayed tracking generally increases with the child's performance level, except among the highest performers — related