SQP: Survey Quality Predictor (1.0)
SQP predicts the reliability and validity of survey questions based on formal characteristics of the question. It is based on a meta-analysis of 87 multitrait-multimethod experiments.
Introduction
SQP predicts the reliability and validity of survey questions based on formal characteristics of the question. It is based on a meta-analysis of 87 multitrait-multimethod experiments.
The meta-analysis was performed by Willem Saris and Irmtraud Gallhofer. SQP 1.0 was written by Daniel Oberski and Stijn Kuipers.
The statistical analysis underlying the program has been published in the journal Survey Research Methods and can be downloaded here:
A more elaborate explanation including a full explanation of the different formal characteristics can be found in the book
The current beta version of the programme is distributed free of charge.
Installation instructions
After downloading the program to your hard disk, please follow these instructions:
- Unzip the program into a convenient directory, such as "Program Files".
- It is essential that you unzip both the WinSQP.exe file and the xml1.xml files into the same folder.
- Double-click to run the program (under MacOS X or Linux, run the program under Wine
Usage instructions
After opening the program, click "Insert new item" to begin.
The following youtube video shows the example coding of an item from the European Social Survey.
Version information and future development
A new web application version of SQP (SQP2) is being actively developed at the Research and Expertise Centre for Survey Methodology (RECSM) of the Pompeu Fabra University, Spain. It will also include the results of MTMM experiments from the European Social Survey.
The Windows version of SQP (SQP1) found on this page is no longer being actively maintained.
In the past a DOS version of SQP written by Marius de Pijper existed, which has been superceded by the Windows program.