Using Spss Transforming Variable - Compute
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This document discusses how to use SPSS to transform and compute new variables from existing variables. It shows how to compute a new variable called "PARTICPN" by summing the values of variables p1, p2, p3, p4, and p5. It then demonstrates computing another new variable called "MEANPART" which calculates the mean of variables p1 through p5 by summing them and dividing by 5.
Using Spss Transforming Variable - Compute
- 1. USING SPSS TRANSFORMING DATA (COMPUTE)
- 3. Transform Compute This is to compute (i.e. creating) a new variable from the existing variables in the data file. Now, we are going to compute a new variable “Participation” form the variables p1, p2, p3, p4, and p5 (Assuming items “p1 – p5” are questions related to participation in decision-making) Note: SPSS allows a maximum of eight characters in a variable name, so we are going to use “PARTICPN” for “Participation”. The following slides will explain how this is done.
- 4. Transform Compute Dialog Box Type “PARTICPN” in the Target Variable box
- 5. Type (p1+p2+p3+p4+p5) in the Numeric Expression box
- 6. (p1+p2+p3+p4+p5) Press “OK” to execute the process
- 7. The new variable “PARTICPN” has been created. These are the scores of “PARTICPN” for the respondents
- 8. We can also compute our new variable by calculating its mean. To do this we need to ask SPSS to divide the sum of “p1+ p2 + p3 + p4 + p5” by 5 (because there are 5 items) Lets do this again, but this time we want the mean for the five items related to “Participation”. Since we already have a variable “PARTICPN” in our data, we need to choose a different variable name. I’m going to use “MEANPART” this time.
- 9. Transform Compute
- 10. Type “MEANPART” in the Target Variable box
- 11. Type “(p1+p2+p3+p4+p5)/5” in this Numeric Expression box Press “OK” to execute
- 12. Our new variable “MEANPART” has been created These are the scores of “MEANPART” for the respondents