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# Questionnaire appraisal resources

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### 02. Video Tutorials (6)

Change the coding of a variable using 'Recode into same variable' in SPSS
This video explains how to change the coding of a categorical variable in SPSS using the 'Recode into same variable' option. This replaces the existing data with the new coding rather than creating a new variable. This resource is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Vikki O'Neill, Queen's University Belfast.
Compute a mean score in SPSS
This video explains how to compute a new variable which is the mean of 2 or more variables combined. This resource is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Vikki O'Neill, Queen's University Belfast.
Compute a total score in SPSS
The video explains How to compute a new variable which is the sum of 2 or more variables combined. This sum is called a total score. This resource is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Vikki O'Neill, Queen's University Belfast.
Create dummy variables from an existing categorical variable in SPSS
This video explains how to use SPSS to dummy code categorical variables. Often, this is required if you want to use the variable in regression, but it has more than 2 categories. This resource is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Vikki O'Neill, Queen's University Belfast.
Reduce the number of groups of a categorical variable in SPSS
This video explains how to reduce the number of groups of a categorical variable in SPSS using 'recode into different variables'. This resource is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Vikki O'Neill, Queen's University Belfast.
Reverse the coding of a variable in SPSS
This video explains how to use 'recode into different variables' to reverse the coding of a variable in SPSS. This resource is contributed to the statstutor Community project by Christine Pereira, Brunel University and reviewed by Vikki O'Neill, Queen's University Belfast.

### 07. Community Project (1)

Questionnaire appraisal form (Checklist SOURCE)
A checklist which may be used to appraise a questionnaire. This resource has been contributed to the statstutor Community Project by Peter Samuels, Birmingham City University under a Creative Commons licence CC-BY-SA and reviewed by Ellen Marshall, University of Sheffield. The zip file contains the source file and the associated statstutor metadata spreadsheet.

### 11. Quick reference worksheet (1)

Questionnaire appraisal form (Checklist)
A checklist which may be used to appraise a questionnaire. This resource has been contributed to the statstutor Community Project by Peter Samuels, Birmingham City University and reviewed by Ellen Marshall, University of Sheffield.