Power, control, and validity in research

Affiliations

Comment

R M Parker. J Learn Disabil. 1990 Dec.

. 1990 Dec;23(10):613-20.

doi: 10.1177/002221949002301008.

No abstract available

Comment on

The effects of Irlen colored lenses on students' specific reading skills and their perception of ability: a 12-month validity study.
Robinson GL, Conway RN. Robinson GL, et al. J Learn Disabil. 1990 Dec;23(10):589-96. doi: 10.1177/002221949002301005. J Learn Disabil. 1990. PMID: 2280166
Reading disabilities and the effects of colored filters.
O'Connor PD, Sofo F, Kendall L, Olsen G. O'Connor PD, et al. J Learn Disabil. 1990 Dec;23(10):597-603, 620. doi: 10.1177/002221949002301006. J Learn Disabil. 1990. PMID: 2280167 Clinical Trial.
The effectiveness of Irlen filters for improving reading performance: a pilot study.
Blaskey P, Scheiman M, Parisi M, Ciner EB, Gallaway M, Selznick R. Blaskey P, et al. J Learn Disabil. 1990 Dec;23(10):604-12. doi: 10.1177/002221949002301007. J Learn Disabil. 1990. PMID: 2280168 Clinical Trial.