A NATIONAL EXPERIMENT IN CURRICULUM EVALUATIONWELCH W. W; WALBERG H. J.AMERICAN EDUCATIONAL RESEARCH JOURNAL. 1972, Vol 9, Num 3, pp 373-383Article

A Test of a Model of Educational Productivity Among Senior High School StudentsWALBERG, H. J; FRASER, B. J; WELCH, W. W et al.The Journal of educational research (Washington, DC). 1986, Vol 79, Num 3, pp 133-139, issn 0022-0671Article

Using Secondary Analysis of National Assessment Data to Identify Predictors of Junior High School Students' OutcomesFRASER, B. J; WELCH, W. W; WALBERG, H. J et al.Alberta journal of educational research. 1986, Vol 32, Num 1, pp 37-50, issn 0002-4805Article

The Influence of Science Class Attitudes and Teacher Image on Student OutcomesTAMIR, P; WELCH, W. W; RAKOW, S. J et al.Journal of research and development in education. 1985, Vol 18, Num 2, pp 26-32, issn 0022-426XArticle