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	Longitudinell innehållsvaliditet	Longitudinell konfirmatorisk faktoranalys
Ämnesområde	Psykometri	Psykometri
Familj	Latent structure	Latent structure
Ursprungsår	1995–2000	1970s–1990s
Upphovsperson	Haynes, Richard & Kubany (1995); extended to longitudinal contexts by measurement invariance researchers	Karl Jöreskog (CFA framework); longitudinal extension by Wheaton, Muthén, and Alwin in the 1970s–1990s
Typ	Validity evaluation technique	Longitudinal latent variable / measurement model
Ursprungskälla	Haynes, S. N., Richard, D. C. S., & Kubany, E. S. (1995). Content validity in psychological assessment: A functional approach to concepts and methods. Psychological Assessment, 7(3), 238–247.	Widaman, K. F. & Reise, S. P. (1997). Exploring the measurement invariance of psychological instruments: Applications in the substance use domain. In K. J. Bryant, M. Windle & S. G. West (Eds.), The science of prevention: Methodological advances from alcohol and substance abuse research (pp. 281–324). American Psychological Association.
Alias	longitudinal content validation, temporal content validity, repeated-measure content validity, content validity over time	longitudinal CFA, repeated-measures CFA, longitudinal measurement model, panel CFA
Närliggande	6	6
Sammanfattning	Longitudinal content validity evaluates whether the items of a measure adequately and consistently represent the intended content domain not only at a single point in time but across repeated administrations. It ensures that the conceptual coverage of a scale remains appropriate and stable as measurement occasions accumulate over a study period.	Longitudinal confirmatory factor analysis (longitudinal CFA) applies a theoretically specified measurement model to data collected at two or more time points. Its primary purpose is to verify that a scale measures the same latent construct in the same way over time — a prerequisite for drawing valid conclusions about change from repeated-measures data.