Codebook Explorer

Add Health Codebook Explorer (ACE)

Welcome to the Add Health Codebook Explorer (ACE). This tool allows you to view questions asked of respondents, parents, and interviewers during the In-School and In-Home interviews in Waves I through IV.

You can browse by topic or search for questions by variable name, keyword, or phrase. The questions are organized by topic, subtopic, and variable. Collections of variables were constructed specifically for this site to show similar questions asked across several waves of data collection and do not represent grouping for research purposes. The questions included in ACE are from the In-School and In-Home interviews. There are many other data sets available; please visit the Codebooks page for a complete list of available data, including contextual and biological data.

Please refer to the ACE Instructions before searching and browsing to maximize your results.