Dear all,
I have a problem of attrition bias in my panel data the years 2004-08. I started with a sample size of 88 individuals and for the next tow years (2005/06 and 2006/07) 30 individuals dropped out and for the last period (2007/08) one individual dropped out.
I was advised to use the IPW estimator (Inverse probability weighting estimator) to correct for this type of bias. However, I was stacked in implementing this method in STATA (I am using sata 13).
I hope getting some help for the various steps to follow (particularly the precise stata commands to use in each step) to apply them to my dataset. According to my research these are the steps to follow (if I didn't make mistakes):
1. How an observation is included in the sample in the next round
2. How to estimate the probability of an observation being included in the sample in the next round.
3. How using these probabilities to compute the weights.
Thank you in advance for your cooperation.
Best regards,
Wided
I have a problem of attrition bias in my panel data the years 2004-08. I started with a sample size of 88 individuals and for the next tow years (2005/06 and 2006/07) 30 individuals dropped out and for the last period (2007/08) one individual dropped out.
I was advised to use the IPW estimator (Inverse probability weighting estimator) to correct for this type of bias. However, I was stacked in implementing this method in STATA (I am using sata 13).
I hope getting some help for the various steps to follow (particularly the precise stata commands to use in each step) to apply them to my dataset. According to my research these are the steps to follow (if I didn't make mistakes):
1. How an observation is included in the sample in the next round
2. How to estimate the probability of an observation being included in the sample in the next round.
3. How using these probabilities to compute the weights.
Thank you in advance for your cooperation.
Best regards,
Wided
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