| CR-KR Merger [message #29973] |
Mon, 02 September 2024 06:55  |
Noyel Sebastian
Messages: 11
Registered: March 2024
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Member |
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I am trying to merge the Couples Recode and Kids Recode of NFHS (India- DHS) to be merged. Can you help me with the syntax? I want to get the father's characteristics in the analysis. Is this CR-KR merger is the viable option to do so?
Thank You
[Updated on: Sun, 08 September 2024 05:01] Report message to a moderator |
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| Re: CR-KR Merger [message #30000 is a reply to message #29973] |
Mon, 09 September 2024 10:15  |
Janet-DHS
Messages: 893
Registered: April 2022
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Senior Member |
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Following is a response from DHS staff member, Tom Pullum:
I don't know what survey you are using, but in the Kenya 2022 survey, for example, the d105 variables take 5 values, as follows:
. label list D105A
D105A:
0 never
1 often
2 sometimes
3 yes, but not in the last 12 months
4 yes, but frequency in last 12 months missing
These are not on an interval-level scale, and are not even ordinal. A z-score does not make sense--that is, is not interpretable--for such a variable. So my first recommendation would be that you re-code these variables before constructing a z score. However, in my opinion, a usable recode is not possible. You could reduce to binary (0/1) form, but in general a 0/1 variable is much easier to interpret in that form than in a standardized form.
I think the specific problem you have is due to a variable taking only one value in the data, such as "never". In such a situation the standard deviation is 0, and you cannot divide by 0, so the standard score is not defined.
The files include a variable d106, which is a summary of all the d105 variables. I don't think you can do much better than that for a summary. I really don't think your sum of z scores is interpretable.
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