| Re: NFHS III [message #17713 is a reply to message #17660] |
Thu, 09 May 2019 13:44  |
Trevor-DHS
Messages: 803
Registered: January 2013
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Senior Member |
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I will try to answer each of the questions:
1) Yes, v017 has two values. Unfortunately these don't show when you just tab v017 as there list a label that has blank entries for v017. Use to drop the label and then see the values.
2) In almost all surveys (with the exception of this and other India surveys) the data collection is done with a fixed start point for the calendar. For the India 2005-06 survey, the data collection was done in two phases, and the start point of the calendar varies by 1 year between the two phases.
3) If you want the two calendars to line up for exactly the same months, then yes, you do need to realign the data from one phase. However, for the majority of analyses we are using time periods relative to the date of interview, and in that case it is typically not necessary to realign the data. Your use may be different and you may need to realign the data. This can be done simply by creating a new variable and adding 12 blanks to the front of the calendar string for the interviews in phase 1.
I hope this helps.
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