方法对比

	Classroom Observation Protocol	概化理论（G-Theory）
领域	Education	心理测量学
方法族	Process / pipeline	Latent structure
起源年份	2009	1963–1972
提出者	Teaching-measurement tradition (Pianta & Hamre CLASS; Danielson Framework; MET project)	Lee J. Cronbach, Goldine Gleser, Harinder Nanda, Nageswari Rajaratnam
类型	Structured, standardized measurement of classroom teaching via trained observers	Variance-components reliability model
开创性文献	Pianta, R. C., & Hamre, B. K. (2009). Conceptualization, measurement, and improvement of classroom processes: Standardized observation can leverage capacity. Educational Researcher, 38(2), 109–119.	Cronbach, L. J., Gleser, G. C., Nanda, H. & Rajaratnam, N. (1972). The Dependability of Behavioral Measurements: Theory of Generalizability for Scores and Profiles. Wiley.
别名	Standardized Classroom Observation, Observation Instruments for Teaching, Classroom Observation System, Structured Teaching Observation	G-theory, G-study / D-study framework, variance components reliability
相关	4	4
摘要	A classroom observation protocol is a standardized instrument for measuring teaching by having trained observers rate lessons against defined dimensions of practice. Unlike informal walkthroughs, validated protocols such as the Classroom Assessment Scoring System (CLASS) and the Danielson Framework specify what to look for, how to score it, and how to train and calibrate raters. As Pianta and Hamre argued, standardized observation turns teaching into something that can be measured systematically, studied for sources of error, validated against student learning, and used to improve instruction.	Generalizability Theory is a psychometric framework that decomposes observed score variance into multiple sources — persons, items, raters, occasions, and their interactions — using analysis of variance. It replaces the single reliability coefficient of classical test theory with a family of coefficients that tell researchers how well scores generalize across different measurement conditions.