Which rating scale measures attitudes using opposing adjectives?

The semantic differential scale is the correct answer because it is specifically designed to measure attitudes by presenting subjects with opposing adjectives that reflect a continuum of feelings. For example, a respondent might rate an object or concept on a scale that includes pairs like "happy-sad," "good-bad," or "strong-weak." By using these bipolar adjectives, the scale allows for nuanced responses that capture the degree to which a person feels a specific way about the topic in question. This method is particularly effective for measuring the subtleties of attitudes in various contexts, such as marketing research or psychological studies.

In contrast, the Likert scale primarily assesses agreement or disagreement with specific statements rather than capturing a range of attitudes through opposing adjectives. The behavior intention scale is focused on predicting how likely a person is to perform a certain behavior, which is more action-oriented rather than attitude-oriented. The numeric scale involves assigning quantitative values to responses without the qualitative nuance provided by opposing adjectives. Thus, the semantic differential scale stands out as a specialized tool for exploring attitudes through contrasts, making it the most suitable choice in this context.