Book Reviews Handbook of Research Methods in Child Development. Paul H. Mussen, Ed. Wiley, New York, 1960. 1061 pp. Illus. $15.25 + See all authors and affiliations Science 26 May 1961:Vol. 133, Issue 3465, pp. 1699DOI: 10.1126/science.133.3465.1699 Lee J. CronbachFind this author on Google Scholar Find this author on PubMed Search for this author on this site Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.