השוואת שיטות

	ניתוח מהימנות של צורות מקוצרות	ניתוח גורמים מאשר (CFA)
תחום	פסיכומטריה	פסיכומטריה
משפחה	Latent structure	Latent structure
שנת המקור	1990s–2000s	1969
הוגה השיטה	Conventional practice; codified notably by Smith, McCarthy & Anderson (2000) and Stanton et al. (2002)	Karl Gustav Jöreskog
סוג	Scale development / psychometric evaluation	Hypothesis-testing latent variable model
מקור מכונן	Stanton, J. M., Sinar, E. F., Balzer, W. K. & Smith, P. C. (2002). Issues and strategies for reducing the length of self-report scales. Personnel Psychology, 55(1), 167–194.	Jöreskog, K. G. (1969). A general approach to confirmatory maximum likelihood factor analysis. Psychometrika, 34(2), 183–202.
כינויים	abbreviated scale reliability, short-form validation, scale shortening, item reduction reliability	CFA, confirmatory FA, measurement model, restricted factor analysis
קשורות	6	4
תקציר	Short-form reliability analysis evaluates whether an abbreviated version of a psychological scale maintains acceptable internal consistency, validity, and structural integrity after items are removed. It is used in survey and assessment research to create briefer instruments that reduce respondent burden without sacrificing measurement quality.	Confirmatory factor analysis tests a researcher-specified factor structure against observed data. Unlike exploratory approaches, the researcher decides in advance which indicators load on which latent factor, and the model is evaluated by how closely the implied covariance matrix reproduces the sample covariance matrix. CFA is central to scale validation, construct validity assessment, and measurement invariance testing.