Tests classified as quantitative provide what type of data?

Tests classified as quantitative provide a count or measurement of a substance, making this the correct answer. Quantitative tests are designed to deliver objective, numerical data that can be measured and analyzed. For example, in a laboratory setting, a quantitative test might determine the concentration of glucose in a blood sample, yielding a specific value like 100 mg/dL. This allowance for precise measurement is essential in various fields, particularly in medicine, where understanding the exact levels of substances in the body is crucial for diagnosis and treatment.

In contrast, the other types of data indicated by the other answer choices do not align with the nature of quantitative testing. Yes or No answers signify a binary choice, which belongs more to qualitative assessments. A summary of qualitative findings embraces descriptive, categorical data rather than measurable numeric values. An interpretive analysis focuses on understanding the implications of data without providing explicit quantitative measurements. Thus, the characteristic of providing a direct count or measurement clearly defines why "a count or measurement of a substance" is the hallmark of quantitative tests.