Definition
Attitude measurement refers to the process of quantifying people’s opinions, feelings, or predispositions toward objects, ideas, or events using structured scales such as Likert, Semantic Differential, and Guttman.

Introduction
Human attitudes cannot be seen directly—they must be inferred through patterns of response. In marketing, psychology, and social sciences, researchers translate these invisible emotions into numerical expressions to analyze trends and predict behavior. Attitude scales transform subjective belief into measurable data, making emotions analyzable through science.

Explanation
The Likert Scale, developed by Rensis Likert (1932), presents a series of statements about an issue, allowing respondents to indicate their level of agreement or disagreement—typically on a 5- or 7-point continuum (Strongly Agree → Strongly Disagree). Each option is assigned a numeric value, and the overall score reflects the respondent’s attitude direction and intensity.

The Semantic Differential Scale, designed by Charles Osgood, measures the connotative meaning of concepts through bipolar adjective pairs such as good–bad, strong–weak, or active–passive. Respondents mark their position on a 7-point continuum between the extremes. It captures subtle emotional dimensions like warmth or trust toward a brand or person.

The Guttman Scale, or cumulative scale, orders items so that agreeing with a stronger statement implies agreement with all weaker ones. It is particularly useful when attitudes follow a logical or hierarchical pattern—for instance, stages of political activism or technological adoption.

Key Takeaways
Attitude scales bring precision to perception. Likert quantifies agreement, Semantic Differential captures nuance, and Guttman measures intensity hierarchy—all converging to reveal what people truly feel.

Real-World Case
Nike regularly uses Likert and Semantic Differential scales to gauge consumer attitude toward sustainability campaigns—measuring perceptions like “ethical–unethical” or “innovative–conventional” to refine brand messaging.
Reference: https://www.nike.com/sustainability