Re-structuring datasets in SPSS

Wide vs Long format• Open the wide.sav file inside the data folder– There are columns for each time point for each

time varying variable, including the DV (DV is wm)

• Open the long.sav file inside the data folder– There is one column per predictor and a “wave”

variable to indicate time. Notice that Centered Age could also be taken as a time variable

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