SPSS

intro to SPSS

This is an introduction to SPSS for first-time users.
The following topics will be covered:

SPSS Window Layout
Data View vs. Variable View
Variable Specifications

(more…)

Advertisements

Transposing Data: Multiple Time Points

If you’re interested in longitudinal analysis, chances are that you have or someday will come across a data set that looks like this: many participants who each have data at multiple, discrete time points.

data-before

This data set is a fairly simple example. For each participant, we have a) their age at the 5 different times and b) their score on a measure of delinquency at the 5 different times. But for most longitudinal data analyses, you’ll want to rearrange the data. Specifically, for this example, I need to know delinquency at each age, for each participant.

(more…)