Welcome
What are you trying to do?
A study for my organisation in psychology and behavioural science.
Your path
Create the study and set the discipline
The discipline decides what every later page shows you.
Decide whether people are involved
If your data is about machines, facilities or finances rather than people, declare no human subjects and the data protection conditions do not apply. The declaration is checked.
Collect or import
Collect through ZStat with consent and withdrawal, or bring a CSV, Excel or SPSS file you already have.
Analyse and compare
Between sites, periods, groups or programmes - with the effect size, because significance alone does not tell a manager whether it matters.
Produce the assurance pack
Generated from your own installation, for a funder or a data protection officer.
What people in your field ask
Build the instrument - check it holds together - check it works the same in every group - then compare or model.
- Does my scale hang together?reliability
- Is it measuring one thing or several?efa
- Does the questionnaire mean the same thing to men and women?measurement invariance
- Did the intervention change anything?repeated measures anova
- Does X affect Y through M?mediation
Watch for: Reporting alpha as evidence of unidimensionality. It rises with the number of items and a twenty-item scale measuring two things easily exceeds .90.
Create your first study The full guide for psychology and behavioural science Start again