השוואת שיטות

	הבדל חשוב מינימלי מבוסס-עוגן	בניית סולם ליקרט
תחום	פסיכומטריה	פסיכומטריה
משפחה	Process / pipeline	Process / pipeline
שנת המקור	1989	1932
הוגה השיטה	Guyatt, Jaeschke, and Singer	Rensis Likert
סוג	Minimal clinically important difference estimation	Summated rating scale methodology
מקור מכונן	Jaeschke, R., Singer, J., & Guyatt, G. H. (1989). Measurement of health status: Ascertaining the minimal clinically important difference. Controlled Clinical Trials, 10(4), 407-415.	Likert, R. (1932). A technique for the measurement of attitudes. Archives of Psychology, 22(140), 1-55.
כינויים	MCID, Minimal clinically important difference, Anchor-based MCID, Minimal important change	Likert summated rating scale, Summated rating scale construction
קשורות	4	5
תקציר	The anchor-based method for establishing Minimal Clinically Important Difference (MCID) is a technique for determining the smallest change in a patient-reported outcome (PRO) that patients or clinicians perceive as meaningful or important. Pioneered by Guyatt, Jaeschke, and Singer in 1989, this approach anchors changes in outcome scores to external clinically meaningful events or judgments, enabling researchers and clinicians to interpret whether treatment effects represent real, patient-relevant improvements.	Likert scale construction is a systematic methodology for developing attitude measurement instruments using summated rating scales. Introduced by Rensis Likert in 1932, it enables researchers to quantify latent constructs such as attitudes, beliefs, and psychological states by aggregating responses across multiple items. The method remains foundational to quantitative social and health sciences research.