Interviewer-Administered Word Recall and Backward Digit Span User Guide

The inclusion of interviewer-administered word recall (immediate and delayed) and backward digit span assessments in Add Health Wave VI reflects our commitment to collecting prospective, in-home neurological measures in early midlife among a nationally representative sample. These three measures have been administered consistently across waves, allowing for longitudinal assessment since Wave IV. By using standard interviewer-administered neurological assessment practices, this approach also facilitates comparison with similar in-person measures collected in other population studies.