What type of experiment involves numerical measurements?

The correct answer indicates that a quantitative experiment involves numerical measurements. In this type of experiment, data is collected in the form of numbers, which allows for mathematical analysis and statistical evaluation. This approach facilitates the determination of relationships, trends, and patterns in the data, providing a clearer and often more objective view of the phenomena being studied.

Quantitative experiments rely heavily on measurement tools and methods, such as scales, rulers, and digital sensors, to obtain precise and quantifiable data. This allows researchers to test hypotheses and draw conclusions based on numerical evidence.

In contrast, experiments that are qualitative focus on descriptive, non-numerical data, such as observations or interviews. Descriptive experiments aim to provide a comprehensive account of a subject without necessarily quantifying it, while comparative experiments involve comparing different groups or conditions, which can also include qualitative analyses rather than purely numerical measurements.