共 5 条
- [1] EDWARDS AL, 1950, EXPT DESIGN PSYCHOL, P165
- [3] CONFIDENCE-INTERVALS FOR CLUSTERED SAMPLES [J]. AMERICAN SOCIOLOGICAL REVIEW, 1957, 22 (02) : 154 - 165
- [4] KISH L, 1957, AM SOCIOLOGICAL REV, V22, P176
- [5] SROLE L, 1961, MENTAL HLTH STORY, V1