1. R. BRENNANGeneralizability analyses: Principles and procedures. ACT Technical Bulletin, No. 26. The American College Testing Program, Iowa City , 1977 .
2. R. BRENNAN, D. JARJOURA, and E. DEATONSome issues concerning the estimation and interpretation of variance components in generalizability theory. ACT Technical Bulletin, No. 36. The American College Testing Program, Iowa City , 1980 .
3. The Generalizability of Class Means