The Impact of Vocabulary Instruction on Passage-Level Comprehension of School-Age Children: A Meta-Analysis - Elleman, A. M.; Lindo, E. J.; Morphy, P.; Compton, D. L. (2009)
meta-analysis; evidence grade C

A Kindergarten Lottery Evaluation of Core Knowledge Charter Schools - Grissmer, D.; Buddin, R.; Berends, M.; Willingham, D.; et al. (2023)
natural-experiment; evidence grade B

Effect of Prior Knowledge on Good and Poor Readers' Memory of Text (the 'baseball study') - Recht, D. R.; Leslie, L. (1988)
quasi-experiment; evidence grade D

Reading Comprehension Research: Implications for Practice and Policy - Elleman, A. M.; Oslund, E. L. (2019)
review; evidence grade D

A Meta-Analysis of the Long-Term Effects of Phonemic Awareness, Phonics, Fluency, and Reading Comprehension Interventions - Suggate, S. P. (2016)
meta-analysis; evidence grade C