手法を比較

	Qの方法論	レパートリー・グリッド法
分野	心理学	心理学
系統	Hypothesis test	Hypothesis test
提唱年	1935	1955
提唱者	William Stephenson	George Kelly
種類	Q-sort ranking technique	Qualitative-quantitative hybrid
原典	Stephenson, W. (1935). Technique of factor analysis. Nature, 136(3434), 297.	Kelly, G. A. (1955). The psychology of personal constructs. Norton.
別名	Q-Sort, Q-Technique	Rep Grid, Repertory Grid Test, Kelly Grid
関連	3	1
概要	Q-Methodology is a mixed-methods approach that combines quantitative factor analysis with qualitative interpretation to identify distinct perspectives, viewpoints, or 'factors' shared by groups of people. Introduced by William Stephenson in 1935, it uses Q-sorts—where participants rank statements on a continuum—to measure subjective viewpoints systematically. The method applies factor analysis to correlations among Q-sorts (not items), revealing common patterns of opinion or attitude that transcend individual differences.	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.