This experiment aims to explore what factors contribute to interviewers’ assessments of respondents’ health. The experiment varies when in a face-to-face interview the interviewer is asked to rate the respondent’s health: at the beginning of the interview before any substantive questions are asked or at the end of interview. For telephone interviews, the interviewer’s rating of the respondent’s health occurred at the end of the interview to allow for a comparison to this circumstance in which interviewers are not able to observe physical cues. Any respondents interviewed via Web were excluded from the experiment.
Random allocation to treatment occurred at the individual level and was computed via system randomization within the questionnaire itself. The controlling variable for this experiment is h_inthlthw8 on record h_indreps_ip:
1 Assessment at the start of the interview
2 Assessment at the end of the interview
The interviewer assessment variables are in record h_indresp:
inthlthe, inthlthl
