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How reliable are MSCA profile interpretations?
Author(s) -
Roffe Michael W.,
Bryant Christy K.
Publication year - 1979
Publication title -
psychology in the schools
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 75
eISSN - 1520-6807
pISSN - 0033-3085
DOI - 10.1002/1520-6807(197901)16:1<14::aid-pits2310160104>3.0.co;2-k
Subject(s) - psychology , statistical significance , reliability (semiconductor) , null hypothesis , test (biology) , statistical analysis , interval (graph theory) , confidence interval , sample (material) , statistics , developmental psychology , clinical psychology , mathematics , chemistry , chromatography , paleontology , power (physics) , physics , quantum mechanics , combinatorics , biology
This study evaluates the reliability of profile analysis for assessing differential abilities on the McCarthy Scales for Children's Abilities (MSCA). Subjects were enrolled in private schools and ranged in age from 5–5 to 6–5. The test‐retest interval ranged from 3 to 6 weeks, with a mean interval of 24 days. Results indicated 70.9% of the sample showed profile variability not reasonably accounted for as real fluctuations in measurable abilities. General application of the null hypothesis procedure for calculating statistical significance of scaled score differences as a basis for interpretive judgments is discussed.