A clinical trial randomly assigns participants to a new treatment or placebo and measures blood pressure; the data collected is categorized as:

Question

BlackTom AI · Accepted Answer

The question asks about the data type and study design when participants are randomly assigned to a new treatment or placebo and blood pressure is measured.

Option a: Observational – qualitative. This is incorrect because the study involves random assignment to treatment, which is an intervention, not merely observation. Also, blood pressure is a quantitative measurement, not qualitative, so the data are not qualitative.

Option b: Experimental – qualitative. While the study is indeed experimental due to random assignment (an intervention), the data collected (blood pressure) are measured on a numerical scale and quantify the level of blood pressure, not a qualitative category. Thus, this option wrongly labels the data as qualitative.

Option c: Observational – quantitative. This is incorrect because the study assigns participants to treatment vs placebo (an intervention), which makes it experimental rather than observational. While the data are quantitative, the observational aspect is inaccurate due to the randomization controlling the exposure.

Option d: Experimental – quantitative. This is correct because the study involves random assignment to an intervention (new treatment or placebo), which defines an experimental design. Blood pressure is a numeric measurement, so the data are quantitative. The combination experimental and quantitative best fits the scenario.

MDM4U - Mathematics of Data Management 12 (2025-26) - A

A clinical trial randomly assigns participants to a new treatment or placebo and measures blood pressure; the data collected is categorized as:

View Explanation

Log in for full answers

Similar Questions

If you wanted two replicates per treatments, how many experimental units would you need? [ Select ] 8 12 27 x [ Select ] 1 2 3 = [ Select ] 12 24 36 experimental units

Question at position 11 Only two treatments should be used in an experiment.Each shrub did not receive all ten pruning methods.Pruning methods were not randomly assigned to shrubs.Each pruning method was used on only one shrub.The shrubs were not randomly selected.

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler