Event history calendars and question list surveys - A direct comparison ofinterviewing methods

The research reported in this article provides the first direct experimenta l comparison between Event History Calendar (EHC; N = 309; 84.4 percent res ponse rate) and standardized state-of-the-art question list (Q-list; N = 30 7; 84.1 percent response rate) interviewing methodologies. Respondents and 20 interviewers were randomly assigned to EHC and Q-list interviews that we re conducted via telephone in the spring of 1998. All interviews asked for retrospective reports on social and economic behaviors that occurred during the calendar years of 1996 and 1997. Using data from the same respondents collected 1 year earlier on events reported during 1996 as a standard of co mparison, the quality of retrospective reports on 1996 events from the 1998 administration of EHC and Q-list interviews was assessed. In comparison to the Q-list, the EHC condition led to better-quality retrospective reports on moves, income, weeks unemployed, and weeks missing work resulting from s elf illness, the illness of another, or missing work for these reasons in c ombination with other ones. For reports of household members entering the r esidence, and number of jobs, the EHC led to significantly more overreporti ng than the Q-list. Contingent on additional research that examines a wider range of reference periods and different modes of interviewing, the EHC ma y become a viable and potentially superior method to the Q-list in the coll ection of self-reported retrospective information.