Example of variable and measurement in research methodology
Variable: In a research study on the impact of exercise on weight loss, the independent variable would be the amount of exercise performed by participants (e.g., measured in hours per week). The dependent variable would be the participants’ weight loss outcomes (e.g., measured in pounds).
Measurement: In a survey-based research study on consumer satisfaction with a particular product, the researcher may use a Likert scale to measure participants’ satisfaction levels. The scale could include statements such as "strongly agree," "agree," "neutral," "disagree," and "strongly disagree." The researcher would assign a numerical value to each response option, allowing for quantitative measurement and comparison of satisfaction levels.