Desired family size in Thailand: Are the responses meaningful?

Data for both rural and urban women in Thailand indicate that the large majority of respondents are able to provide numerical responses to questions on desired family size. Although there is evidence that some women tend to rationalize the number of children they have when stating the number they would want if they were recently married, the vast majority of respondents prefer a number which is different from the number of living children they had at the time of the interview. Women who had already reached or exceeded their desired number were almost universal in stating they wanted no additional children, whereas only a minority of women who had yet to reach their desired family size said they wanted no more children. Finally, the proportion of women who practiced family planning is substantially greater among women who had already achieved or exceeded their desired family size than among women who had fewer than their desired number. The results thus suggest that, in Thailand at least, responses to family size preferences need to be interpreted with caution but nevertheless can be of use to the population analyst.