Final answer:
Quantitative research generates precise knowledge about measurable topics such as weight, blood pressure, and temperature by collecting numerical data that can be analyzed statistically.
Step-by-step explanation:
Methods that produce knowledge about very precise topics such as weight, blood pressure, temperature are generally associated with quantitative research. This type of research involves collecting and analyzing numerical data, which allows for more precise measurement and statistical analysis. Therefore, the correct answer is: d) Quantitative research. Unlike qualitative research, which might capture descriptive or subjective data, quantitative research focuses on quantifiable variables that can be compared or measured. As such, data like weight, blood pressure, and temperature are empirical and can be standardized to ensure consistency across studies.
For example, when a scientist records the temperature outside as 24 degrees Fahrenheit, this represents a quantitative description. It provides a specific numerical value that can be replicated and compared in a controlled environment. This contrasts with qualitative descriptions such as "Gold is yellow," which describes a characteristic that cannot be numerically measured.