The intervention produced significant effects on researcher-developed measures of vocabulary depth but not vocabulary breadth¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r? · q2
Currency · newest study 2011 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Significant effects were detected on researcher-developed measures of vocabulary depth. → Proctor 2011 q2 i? No significant effect was detected on a researcher-developed measure of vocabulary breadth. → Proctor 2011 (2)

Evidence¶

Proctor 2011¶

Proctor, C.P., Dalton, B., Uccelli, P., Biancarosa, G., Mo, E., Snow, C., & Neugebauer, S. (2011). Improving comprehension online: effects of deep vocabulary instruction with bilingual and monolingual fifth graders. Read Writ 24, 517–544. https://doi.org/10.1007/s11145-009-9218-2

q2 · i? · causal · r?

Researcher-developed outcome measures administered in the same 16-week quasi-experiment with 240 students. The article reports "significant effects on researcher-developed measures of vocabulary depth"; no effect size is printed.

"Similarly, significant effects on researcher-developed measures of vocabulary depth were detected, but not for a researcher-developed measure of breadth."

Proctor 2011 (2)¶

Proctor, C.P., Dalton, B., Uccelli, P., Biancarosa, G., Mo, E., Snow, C., & Neugebauer, S. (2011). Improving comprehension online: effects of deep vocabulary instruction with bilingual and monolingual fifth graders. Read Writ 24, 517–544. https://doi.org/10.1007/s11145-009-9218-2

q2 · i? · causal · r?

In the same quasi-experiment, the researcher-developed breadth measure showed no significant intervention effect; the article prints no effect size, so the null is reported without an equivalence claim.

"Similarly, significant effects on researcher-developed measures of vocabulary depth were detected, but not for a researcher-developed measure of breadth."

Discussion¶

Learner Variables¶

• Vocabulary — outcome: instruction changes it

Related Claims¶

• A 16-week universally designed online depth-of-vocabulary intervention improved standardized vocabulary knowledge relative to a control group in fifth graders — related
• World of Words produced a statistically significant medium-to-large effect on a researcher-developed vocabulary inductive reasoning test (effect size 0.66) — related