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RELIABILITIES AND VALIDITIES OF SIMPLE AND EXTENDED WEIGHTED AND BUFFERED UNIFACTOR SCALES
Author(s) -
Cattell Raymond B.,
Radcliffe John A.
Publication year - 1962
Publication title -
british journal of statistical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.157
H-Index - 51
eISSN - 2044-8317
pISSN - 0950-561X
DOI - 10.1111/j.2044-8317.1962.tb00093.x
Subject(s) - simple (philosophy) , reliability (semiconductor) , cover (algebra) , statistics , scale (ratio) , mathematics , measure (data warehouse) , computer science , reliability engineering , data mining , econometrics , calculus (dental) , engineering , geography , medicine , cartography , mechanical engineering , philosophy , power (physics) , physics , dentistry , epistemology , quantum mechanics
Formulae are required for estimating the reliability and validity of scales constructed to measure a single factor, when irrelevant common and specific factors also exist among the data. Equations are here developed for this purpose, to cover scales with single members or many members, and with both weighted and unweighted components: the use of suppressor patterns is also taken into account. Relations to existing formulae, e.g., those of Spearman and Brown, are worked out, and an improved nomenclature is proposed.