Correct Answer:
C. Test
Quantitative tools are instruments used to collect numerical data that can be measured, counted, or statistically analyzed. They focus on objective measurements and numerical analysis. The correct answer is Test.
- A Test, such as a multiple-choice exam, a standardized assessment, or a survey with scaled responses, yields numerical scores or data points that are inherently quantitative. These results can be statistically analyzed to draw conclusions.
- Interview is primarily a qualitative tool, gathering in-depth, descriptive verbal information from individuals. While some aspects can be quantified (e.g., frequency of certain words), its core purpose is qualitative understanding.
- Observation can be quantitative (e.g., counting specific behaviors) or qualitative (descriptive notes). However, as a general 'tool' without further specification, it's often associated with qualitative research.
- A Case study is a qualitative research method involving an intensive, in-depth investigation of a single individual, group, or event, focusing on rich, descriptive detail rather than numerical data.