ERIC Number: EJ243243
Record Type: Journal
Publication Date: 1980
Reference Count: N/A
Exact Type 1 Error Rates for Robustness of Student's t Test with Unequal Variances.
Ramsey, Philip H.
Journal of Educational Statistics, v5 n4 p337-49 Win 1980
Disagreements have arisen about the robustness of the t test in normal populations with unequal variances. Employing liberal but objective standards for assessing robustness, it is shown that the t test is not always robust to the assumption of equal population variances even when sample sizes are equal. (Author/JKS)
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A