مقایسهٔ روش‌ها

	Factor Analysis	تکنیک گرید ریپرتوری	Thematic Analysis
حوزه	آمار پژوهش	روان‌شناسی	پژوهش کیفی
خانواده	Process / pipeline	Hypothesis test	Process / pipeline
سال پیدایش	1931	1955	2006
پدیدآور	Louis Leon Thurstone	George Kelly	Virginia Braun and Victoria Clarke
نوع	Method	Qualitative-quantitative hybrid	Method
منبع بنیادین	Thurstone, L. L. (1947). Multiple Factor Analysis. University of Chicago Press.	Kelly, G. A. (1955). The psychology of personal constructs. Norton.	Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3(2), 77–101.
نام‌های دیگر	EFA, CFA, latent variable modeling	Rep Grid, Repertory Grid Test, Kelly Grid	TA, Reflexive Thematic Analysis
مرتبط	3	1	3
خلاصه	Factor analysis is a statistical technique for identifying latent (unobserved) dimensions underlying observed variables, developed by Louis Leon Thurstone in the 1930s and formalized by Jöreskog (1969). Exploratory factor analysis (EFA) discovers unknown factor structure from data; confirmatory factor analysis (CFA) tests hypothesized relationships between observed and latent variables. Essential in psychometrics (test development), organizational research (measuring constructs like leadership style), and biomedicine (identifying disease subtypes), factor analysis reduces dimensionality while revealing conceptual organization in multivariate data.	The Repertory Grid is a qualitative-quantitative method derived from Personal Construct Theory that elicits how individuals construe (interpret and evaluate) a domain of interest—people, concepts, events, or objects—through their own idiosyncratic dimensions or 'constructs.' Introduced by George Kelly in 1955, the method generates a grid of elements (e.g., people) rated along personally meaningful bipolar constructs, revealing cognitive structures, values, and reasoning patterns without imposing researcher-defined categories.	Thematic Analysis (TA) is a qualitative research methodology for identifying, analyzing, and reporting patterns (themes) in qualitative data. Developed systematically by Virginia Braun and Victoria Clarke (2006), TA is flexible and accessible, applicable across diverse theoretical frameworks and data types, making it one of the most widely used qualitative methods in psychology, health research, and social sciences.