Range Restriction Assumptions Assuming Quadratic Conditional Variances
- Author(s):
- Boldt, Robert F.
- Publication Year:
- 1973
- Report Number:
- RB-73-59
- Source:
- ETS Research Bulletin
- Document Type:
- Report
- Page Count:
- 13
- Subject/Key Words:
- Computer Software, Data Analysis, Statistical Analysis
Abstract
This paper is concerned with range restriction corrections where (a) the regressions of variables subject to selection on explicit selection variables are linear, and (b) the variance-covariance matrix of errors of prediction is a quadratic function of the regression estimates. Assumption (b) seems warranted in some data and replaces the homoscedasticity applies. (13pp.)
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- http://dx.doi.org/10.1002/j.2333-8504.1973.tb00845.x