In order to conduct a pre-post experiment to see the effectiveness of problem-solving therapy on university students, their quality of life was assessed using the WHOQOL-BREF google survey questionnaire. Data was exported from google spreadsheet to excel and then spss. Should four different spss files be made out of which two will be for the control group before and after and the other two for the experimental group before and after? I have totaled the domain scores before entering data on spss, but I think that wasn't necessary.
It is not necessary to create four different SPSS files for the control and experimental groups before and after the intervention. Instead, you can create one SPSS file with all the data and use different variables to distinguish between the control and experimental groups and the pre- and post-intervention scores.
Here's an example of how you could structure your SPSS file:
✓ Create a variable for participant ID to identify each student.
✓ Create a variable for group (control vs. experimental).
✓ Create a variable for time (pre-intervention vs. post-intervention).
✓ Create a variable for each domain score on the WHOQOL-BREF questionnaire (e.g., physical health, psychological health, social relationships, environment).
✓ Enter the scores for each participant at both time points.
You can then use SPSS to conduct a repeated measures analysis of variance (ANOVA) to compare the mean scores between the control and experimental groups before and after the intervention. This approach will allow you to test whether there are significant differences in the quality of life domain scores between the two groups before and after the problem-solving therapy intervention.
Regarding totaling the domain scores before entering data on SPSS, it depends on how you want to analyze the data. If you are interested in comparing the scores for each domain separately, you should enter each domain score separately. However, if you want to analyze the overall quality of life score, you can calculate the total score and enter it as a separate variable in SPSS
It is not necessary to create four different SPSS files for this study. Instead, you can use a single SPSS file to store all the data and use different variables to differentiate between the experimental and control groups, as well as the pre and post measurements.
It is also not necessary to total the domain scores before entering the data in SPSS. You can enter the individual item responses for each participant and then use SPSS to calculate the domain scores by adding up the item scores and dividing by the number of items in that domain. This will allow you to have more detailed data to analyze if needed.
Here are some general steps you can follow to analyze the data in SPSS:
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