PSPP-BUG: bug in pspp

[Michael Schneider]

Dear Ladies and Gentlement,

 

there is bug in pspp.

 

In the t-test for independent samples, the standard error of the differences of means with equal variances is not calculated correctly.

 

In this case, the standard error for differences of mean values ​​is performed by independent samples with unequal variances.

 

Please compare the indentical analyzes of SPSS and PSPP.

 

Second, second, for biostatistical analysis a three digit representation of the results is desirable.

 

 

Thank You very much for Your attention.

 

Your sincerely,

 

 

Michael Schneider

 

Biostatistics

Center for Musculosceletal Research

University of Würzburg

Germany

 

0049 / 931 / 803-1577

 

 

 

 

 

 

 

 

 

 

analysis_spss.pdf
Description: Adobe PDF document

analysis_pspp.pdf
Description: Adobe PDF document