I am currently using the online data anlysis tool to try and compare the share of employed workers in the United States in 1970 who were lawyers to the share that were lawyers in 2012. I have two small questions - which I realize may be quite obvious - but which I would greatly appreciate your opinion on.
Which 1970 sample should I be using when looking at these occupational breakdowns (1970 1% Form 1 vs. 1970 1% Form 2). The occ1990 variable is available for both, but they provide very slightly different occupational figures. Is there any reason to use one over the other, or should I be attempting to combine them?
Would you discourage users from comparing the occupational percentages taken from decennial census data to those taken from ACS data, or is it considered acceptable to do so? I realize the survey methodologies are of course extremely different and the universe of workers being questioned about their occupation has shifted slightly in terms of age, but given that the occ1990 variable was made available in the recent ACS samples as well it appears implied that such comparisons can be done. Do you have any opinion on this?
Thank you so much for any help you can provide. It is greatly appreciated!