Growth in serial order STM from Age 4 to Age 5 predicts growth in vocabulary, whereas growth in item STM does not¶

Claim · All claims
Evidence · 1 study · associational r2 · q3 · i2 medium
Currency · newest study 2010 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 The Age 4-to-Age 5 increase in serial order reconstruction performance predicted the increase in vocabulary knowledge after controlling for increase in Raven's matrices (r = .34, p<.05). → Leclercq 2010 q3 i0 The increase in nonword repetition performance did not predict the increase in vocabulary knowledge once increase in Raven's matrices was controlled (r = .00, p = .98). → 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 · i2 · associational · r2

Difference-score partial correlation analyses on the 45-participant valid dataset, subtracting Age 4 from Age 5 performance. Serial order STM gain showed "r = .34, p<.05" with vocabulary gain; item STM gain showed "r = .00, p = .98".

"Partial correlation analyses revealed that only the increase of performance on the serial order reconstruction task, as measured by the number of correct positions recalled, predicted the increase in vocabulary knowledge after control of increase in Raven's matrices performances (r = .34, p<.05). In contrast, the performance increase in nonword repetition task didn't predict the increase in vocabulary knowledge once increase in Raven's matrices performances were controlled for (r = .00, p = .98)."

Discussion¶

Related Claims¶

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