Hi.

I have the following question:

I have two samples of youth (not the same individuals, but both are nationally representative of youth age 15-29 and include the same measures), one was taken in 2010 and another in 2020. The model tests the relationship between housing affordability, anxiety, stres, and health. Now, the model as such works as predicted (in regression), but which method would be appropriate if I would like to test the impact of survey year (i.e. time)?

When I do mean comparisons, I can see that in 10 years housing affordability decreased, anxiety and stress both increased, and health decreased. Is it permissible to just enter "survey_time" (which has two values, 2010 and 2020) as another variable in the regression analysis? Another option I was thinking about was calculating interaction terms between all IV and survey_time and entering them in the linear regression? Thank you for your help.

Rudi. 

Hi Rudi

I hope you have meant the title "How to model time in SPSS?". I had posted the reply for that.

Regards