Serial order STM at Age 4 predicts later nonverbal reasoning, but serial order STM gain does not predict nonverbal reasoning gain¶

Claim · All claims
Evidence · 1 study (2 entries) · associational r2 · q3 · i0 negligible
Currency · newest study 2010 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Serial order reconstruction performance at Age 4 predicted 10% of independent variance in Raven's matrices scores at Age 5 after controls, while nonword repetition did not independently predict later Raven's scores. → Leclercq 2010 q3 i0 Performance increase in serial order STM did not predict performance increase in nonverbal intelligence between Age 4 and Age 5 after control of vocabulary increase (r = .07, p = .67). → Leclercq 2010 (2)

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

Regression predicting Age 5 Raven's Coloured Progressive Matrices from Age 4 STM measures in the same longitudinal cohort; serial order STM predicted "10% of independent variance" while nonword repetition did not.

"However, serial order reconstruction performance at Age 4 remained a significant predictor of Raven's matrices scores one year later, predicting 10% of independent variance, after control of initial differences in age, vocabulary knowledge, Raven's matrices scores, and nonword delayed repetition performance."

Leclercq 2010 (2)¶

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 · i0 · associational · r2

Difference-score partial correlation for the nonverbal reasoning outcome; the gain-gain association was "r = .07, p = .67", which the authors contrast with the robust vocabulary association.

"Nevertheless, performance increase in the serial order STM task did not predict performance increase in the nonverbal intelligence task between Age 4 and Age 5 after control of vocabulary increase (r = .07, p = .67)."

Discussion¶

Related Claims¶

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