Download SAS-macros to compute the probability of obtaining two statistically different test scores (PDTS).

Müller, J. M. (in press). The Probability of Obtaining Two Statistically Different Test Scores as a Basic Test Characteristic. Educational and Psychological Measurement.

If you use Netscape as your browser make a right-click and ‘save as….’ on your hard disc.

Step	Name of the SAS Macro or File	Data Type	Download
Decide what IRT software output you would like to use
Copy example WINMIRA	Win_test.por	SPSS File (portable File)	Win_test.por
Read WINMIRA-Output	%ReadWinPP	SAS-Code	Read Winmira output.sas
Copy example PARSCALE	Par_test.ph3	ASCII File	Par_test.ph3
Read PARSCALE	%ReadParPP	SAS-Code	Read Parscale output.sas
Copy example BILOG-MG	Bil_test.PH3	ASCII File	Bil_test.PH3
Read BILOG-MG	%ReadBilPP	SAS-Code	Read Bilog_MG output.sas
Copy example Bigsteps	Big_test.PF	ASCII File	Big_test.PF
Read Bigsteps	%ReadBigPP	SAS-Code	Read Bigsteps output.sas
Compute PDTS within CTT	%PDTS	SAS-Code	PDTS.sas
Compute PDTS within IRT	%PDPP	SAS-Code	PDPP.sas
After applying %PDTS/ %PDPP your SAS output should look like this		ASCII File	Example PDTS and PDPP.out
Open for your contribution…	Open for your contribution…

You will find more SAS macro on my personal Website (unfortunately in German).