مقایسهٔ روش‌ها

	تحلیل پایایی چندگروهی	آلفای کرونباخ چندگروهی
حوزه	روان‌سنجی	روان‌سنجی
خانواده	Latent structure	Latent structure
سال پیدایش	1990s–2000s	1951 (alpha); multi-group application from 1980s onward
پدیدآور	Classical test theory traditions; synthesized in modern practice by Vandenberg & Lance (2000) and Sijtsma (2009)	Lee J. Cronbach (alpha); multi-group extension in cross-cultural and measurement invariance research
نوع	Reliability estimation and comparison	Reliability / internal consistency comparison
منبع بنیادین	Vandenberg, R. J. & Lance, C. E. (2000). A review and synthesis of the measurement invariance literature: Suggestions, practices, and recommendations for organizational research. Organizational Research Methods, 3(1), 4–70.	Cronbach, L. J. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16(3), 297–334.
نام‌های دیگر	reliability comparison across groups, group-specific reliability estimation, multi-sample reliability analysis, cross-group internal consistency	group-stratified alpha, cross-group alpha comparison, subgroup internal consistency, MG-alpha
مرتبط	4	4
خلاصه	Multi-group reliability analysis estimates internal consistency or stability coefficients separately within each group and then formally compares them to determine whether a scale functions with equal precision across populations. It is a foundational step in cross-group measurement research, typically carried out alongside or prior to measurement invariance testing.	Multi-group Cronbach's alpha estimates and compares the internal consistency reliability of a scale separately within each of two or more defined subgroups. It is used in cross-cultural, demographic, and comparative psychometric research to establish that a scale measures its construct with equivalent precision across groups before making cross-group comparisons.