Dear all ,
I'm doing a pediatric study and the majority of sample's ages are repressented by year + months such as 6Y+4M. How can enter the data and calculate the mean in SPSS?
Thank you for your cooperation!
Kind regards,
Yazeed.
Convert years to months. Average the ages in months. The average can be converted back to Yrs, months.
Hello Yazeed,
Assuming that you want age rounded to the nearest year, this syntax command would work:
compute age = Y + RND(M / 12 + 0.5) .
If you want age in months, then this syntax command would work:
compute age = 12 * Y + M .
(where Y = years, M = months)
In SPSS, from the main menu bar, choose Transform / Compute ...
then put the desired expression in, e.g., "age" as the new target variable, and the right-hand side of the relevant equation in the larger box at the top right of the dialog box that opens.
For a pediatric study, the second function, using months as the unit for the new variable (age), rather than years as the unit, might be preferred.
Good luck with your work.
Convert years to months. Average the ages in months. The average can be converted back to Yrs, months.
I did this in my undergraduate thesis. I took the answers in months and took the average.
I agree with Marissa --convert years to months ,,to calculate with the same parameter...
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