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ArtikelModerator Search in Meta - Analysis : A Review and Cautionary Note on Existing Approaches  
Oleh: Viswesvaran, Chockalingam ; Sanchez, Juan I.
Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Educational and Psychological Measurement vol. 58 no. 1 (1998), page 77-87.
Topik: META - ANALYSIS; analysis
Fulltext: 77.pdf (1.06MB)
  • Perpustakaan Pusat (Semanggi)
    • Nomor Panggil: EE30.2
    • Non-tandon: 1 (dapat dipinjam: 0)
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Isi artikelMeta analytic searches for moderators or boundary conditions of relationships between variables have increased over the years. Multiple regression and subgroup analysis are the two most common strategies used to search for moderators in a meta - analysis. This short note develops the argument that estimates of the moderator effect may vary depending on the approach (regression or subgroup) chosen by the meta - analyst. The difference results from the ambiguity in asigning the variance shared by correlated moderators when that shared variance is also shared with the effect size. Formulae are presented to estimate the magnitude of the differnce, and illustrative examples of tables for different levels of moderator effects and moderator intercorrolations are provided.
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