ERIC Number: ED328146
Record Type: RIE
Publication Date: 1990
On Time to the Doctorate. A Study of the Increased Time To Complete Doctorates in Science and Engineering.
Tuckman, Howard; And Others
The project described in this report was designed to render an in-depth analysis of what has happened to doctorate completion times since 1967, to provide a time-series data base for the period 1967-1986, and to develop a model that explains some of the factors that have caused an elongation to occur. Chapter 1 begins with an examination of how and when time to the doctorate (TTD) has been lengthening, illustrated by the rise in mean total TTD from 1967 to 1986 in each of the 11 fields studied. Chapter 2 reviews five avenues of inquiry in the literature as they relate to TTD and models of student decisionmaking. Chapter 3 introduces a causal model of the determinants of TTD based on an opportunity-cost framework of student decisionmaking. Chapter 4 presents selected data on the zero-order correlations between the independent variables in the model and TTD (and its components). Chapter 5 introduces a statistical model and presents a summary of which regression coefficients are significant (and of their signs) for alternative specification of the model. Chapter 6 presents the regression coefficients for the basic model and several variants using registered time to the doctorate (RTD) as the dependent variable. Finally, chapter 7 discusses the findings in this study, their implications, and research questions that warrant further study. Contains an appendix and selected bibliography. (GLR)
Descriptors: Academic Achievement, Decision Making, Doctoral Programs, Engineering Education, Graduate Students, Graduate Study, Higher Education, Literature Reviews, Models, Science Education, Time Factors (Learning), Time on Task
National Academy Press, 2101 Constitution Avenue, N.W., Washington, DC 20418 ($16.00, export $19.50).
Publication Type: Information Analyses
Education Level: N/A
Sponsor: National Science Foundation, Washington, DC.
Authoring Institution: National Academy of Sciences - National Research Council, Washington, DC. Office of Scientific and Engineering Personnel.