This assessment report provides information on data quality, specifically data completeness, for the person-level and household-level items from the 2010 Census. These items include tenure, relationship, sex, age/date of birth, Hispanic origin, and race. The item nonresponse rates, along with imputation rates, are types of response quality measures. The item nonresponse rate is mainly used as an indicator of respondent cooperation. Imputation rates incorporate respondent cooperation, but also consider inconsistent and unusable responses.

Note that results presented in this report apply to characteristic imputation as opposed to count imputation. The characteristic imputation process assessed in this report begins after the household population is established/resolved through various processes, such as count imputation.

Item nonresponse and imputation rates are calculated for self-response returns and enumerator returns as well as Group Quarters. For item nonresponse rates, the universe excludes vacant and deleted housing units. Note that item nonresponse results for the bilingual questionnaire are included in this assessment and will also be in the 2010 Decennial Census Bilingual Assessment (see Rothhaas et al., 2011).