Vocabulary knowledge at Age 4 does not predict serial order STM development at Age 5 once initial age, nonverbal reasoning and serial order STM are controlled¶

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2010 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Reverse-direction regressions predicting serial order STM at Age 5 from vocabulary at Age 4 were not significant after controls, supporting the directionality of the STM-to-vocabulary prediction. → Leclercq 2010

Evidence¶

Leclercq 2010¶

Leclercq, A.-L., & Majerus, S. (2010). Serial Order Short-Term Memory Predicts Vocabulary Development: Evidence from a Longitudinal Study. Developmental Psychology. https://doi.org/10.1037/a0018540

q3 · i? · associational · r2

Reverse-direction hierarchical regression in the same longitudinal cohort, testing whether earlier vocabulary predicted later serial order STM; the article reports no significant prediction. Equivalence was not tested.

"Table 7 shows that vocabulary knowledge at Age 4 was not a significant predictor of verbal STM development at Age 5 once initial differences in age, nonverbal reasoning, and serial order STM performances were controlled for."

Discussion¶

Related Claims¶

• Serial order STM at Age 4 predicts later nonverbal reasoning, but serial order STM gain does not predict nonverbal reasoning gain
• Growth in serial order STM from Age 4 to Age 5 predicts growth in vocabulary, whereas growth in item STM does not — related
• Serial order STM at Age 4 predicts vocabulary knowledge at Age 5 over and above initial vocabulary, item STM, age and nonverbal reasoning — related
• Serial order STM shows raw concurrent and longitudinal correlations with vocabulary at both ages — related