In SPSS, you can modify any function that takes a list of variables as arguments using the .n suffix, where n is an integer indicating how many nonmissing values a given case must have. There are scores on Maths, English, Biology and Chemistry from 13 students. Understanding SPSS variable types and formats allows you to get things done fast and reliably. You can also do the following if you have more variables: COMPUTE sum_all=SUM(v1 TO v102).

Otherwise, SPSS will consider the "blank" category as a valid category. Use SUM function to sum variables in SPSS e.g Transform / Compute Sum = SUM(v1,v2,v3,v4) The Syntax for this would be: COMPUTE sum = SUM(v1,v2,v3,v4) . If you don't use the SUM function and instead just use: SUM = V1 + V2 + V3 + V4 Below are two different ways to set up repeated measures data, namely, the long format and the wide format. Getting a grip on types and formats is not hard if you ignore the very confusing information under variable view.This tutorial will put you on the right track. Move across to the central box the first variable that needs re-coding.

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As long as a case has at least n valid values, the computation will be carried out using just the valid values.

Example: The data given below represents the scores of 10 students in a final examination. If that still sounds a little abstract, try running the two examples in the syntax below. As long as a case has at least n valid values, the computation will be carried out using just the valid values. Conclusion. Go to Transform – Recode into Different Variables 3. Usually, this is performed with the base 10, using the function ‘LG10()‘.However, other bases can be used in the log transformation by using the formula ‘LN()/LN(base)‘, where the base can be replaced with the desired number. How to square a variable in SPSS 19: L Rapeli: 6/26/11 11:26 PM: Hi. Suppose y is the original dependent variable and x is your independent variable. 2. EXECUTE . Also see SPSS Moderation Regression Tutorial.. For testing moderation effects in multiple regression, we start off with mean centering our predictors: mean centering a variable is subtracting its mean from each individual score.
Thanks!! Does anyone know an easy way to square a variable in spss 19, that is, to create a new variable by multiplying the values of a variable by itself? Finally, click the ‘OK‘ button to transform the data.

EXECUTE.

The results are also shown in the screenshot that follows. Click Old and New Values and specify how to recode values.

In this example, let’s say we have some scores (out of 100) on different college subject tests. You can analyze repeated measures data using various approaches, such as repeated measures ANOVA/GLM (the multilevel model) or the linear mixed model. The ‘Output Variable’ section on the far right becomes active. If you select multiple variables, they must be the same type (numeric or string). To recode into different variables, click Transform > Recode into Different Variables. Type in the name of the new SPSS variable that will hold the recoded values. Each of these approaches requires a different way of setting up the data in SPSS. EXECUTE.