On Time to the Doctorate

On Time to the Doctorate

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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)Changes in Market Forces Salary Variables An exhaustive review of salary data revealed differences in the quantity and ... begins in 1968 for baccalaureate and doctorate salaries in engineering, chemistry, and physics (BCLa#39;s data series foranbsp;...

Title:On Time to the Doctorate
Author: Howard P. Tuckman, Susan Coyle, Yupin Bae
Publisher:National Academies - 1990-01-01

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