AIDS knowledge and measurement considerations with unacculturated Latinos

Likert-type scales are frequently used in research with different ethnic groups. Differences in cultural response styles and understanding of the scale have long been noted but rarely explored in research. This article presents the authors' experiences in using a Likert-type questionnaire to measure AIDS knowledge among recently arrived Mexican immigrants in the southeastern United States. The questionnaire findings were compared to a qualitative assessment using vignettes to ascertain knowledge of AIDS casual transmission. It was found that a lack of association existed between the respondents' answers to the quantitative AIDS Likert-type scale and the qualitative vignettes. In-depth interviews to understand the problems respondents were having with the scaling (linguistics, format, and wording of the AIDS questionnaire) supported the findings of a lack of association between the two methods of knowledge assessment. The findings suggest that the Likert-type format is confusing for, and does not accurately reflect knowledge in, recently arrived Mexican immigrants.