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Problem Note 57671: PROC IRT generates an incorrect score when the INMODEL(SCORE) data set contains only one observation

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In the IRT procedure, if an INMODEL(SCORE)= data set has only one observation, the score value saved in the _FACTOR1 variable in the OUT= data set is incorrect.

The problem can be circumvented by adding one or more dummy observations to the INMODEL(SCORE)= data set.

Click the Hot Fix tab in this note to access the hot fix for this issue.



Operating System and Release Information

Product FamilyProductSystemProduct ReleaseSAS Release
ReportedFixed*ReportedFixed*
SAS SystemSAS/STATz/OS14.19.4 TS1M3
z/OS 64-bit14.19.4 TS1M3
Microsoft® Windows® for x6414.19.4 TS1M3
Microsoft Windows 8 Enterprise 32-bit14.19.4 TS1M3
Microsoft Windows 8 Enterprise x6414.19.4 TS1M3
Microsoft Windows 8 Pro 32-bit14.19.4 TS1M3
Microsoft Windows 8 Pro x6414.19.4 TS1M3
Microsoft Windows 8.1 Enterprise 32-bit14.19.4 TS1M3
Microsoft Windows 8.1 Enterprise x6414.19.4 TS1M3
Microsoft Windows 8.1 Pro14.19.4 TS1M3
Microsoft Windows 8.1 Pro 32-bit14.19.4 TS1M3
Microsoft Windows 1014.19.4 TS1M3
Microsoft Windows Server 200814.19.4 TS1M3
Microsoft Windows Server 2008 R214.19.4 TS1M3
Microsoft Windows Server 2008 for x6414.19.4 TS1M3
Microsoft Windows Server 2012 Datacenter14.19.4 TS1M3
Microsoft Windows Server 2012 R2 Datacenter14.19.4 TS1M3
Microsoft Windows Server 2012 R2 Std14.19.4 TS1M3
Microsoft Windows Server 2012 Std14.19.4 TS1M3
Windows 7 Enterprise 32 bit14.19.4 TS1M3
Windows 7 Enterprise x6414.19.4 TS1M3
Windows 7 Home Premium 32 bit14.19.4 TS1M3
Windows 7 Home Premium x6414.19.4 TS1M3
Windows 7 Professional 32 bit14.19.4 TS1M3
Windows 7 Professional x6414.19.4 TS1M3
Windows 7 Ultimate 32 bit14.19.4 TS1M3
Windows 7 Ultimate x6414.19.4 TS1M3
64-bit Enabled AIX14.19.4 TS1M3
64-bit Enabled Solaris14.19.4 TS1M3
HP-UX IPF14.19.4 TS1M3
Linux for x6414.19.4 TS1M3
Solaris for x6414.19.4 TS1M3
* For software releases that are not yet generally available, the Fixed Release is the software release in which the problem is planned to be fixed.