قارن الطرق

	صلاحية المحتوى الطولية	اختبار ثبات القياس الطولي
المجال	القياس النفسي	القياس النفسي
العائلة	Latent structure	Latent structure
سنة النشأة	1995–2000	1993
صاحب الطريقة	Haynes, Richard & Kubany (1995); extended to longitudinal contexts by measurement invariance researchers	William Meredith
النوع	Validity evaluation technique	Measurement model testing
المصدر التأسيسي	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.	Meredith, W. (1993). Measurement invariance, factor analysis and factorial invariance. Psychometrika, 58(4), 525–543.
الأسماء البديلة	longitudinal content validation, temporal content validity, repeated-measure content validity, content validity over time	LMI, longitudinal invariance, measurement equivalence across time, temporal measurement invariance
ذات صلة	6	3
الملخص	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 measurement invariance testing determines whether a psychological scale measures the same construct in the same way across two or more time points. It is a prerequisite for interpreting mean-level change scores in panel and repeated-measures studies, ensuring that observed change reflects true change in the construct rather than drift in the measurement instrument.