AP Statisticsmediummcq1 pt
The placebo effect is
A.improvement from believing in treatment
B.a measurement error
C.a sampling method
D.a type of bias in surveys
Explanation
Core Concept
Expectation itself changes outcomes.
Correct Answer
Aimprovement from believing in treatment
More Unit 3: Collecting Data practice questions
- mediumA matched pairs design comparing two tire brands on the same cars controls for
- mediumWhich pair correctly matches sampling and assignment?
- easyWhy can't an observational study prove causation?
- easyWhich study can support causal conclusions?
- easyTreatments in an experiment are
Practice more AP Statistics questions with full explanations
Practice Unit 3: Collecting Data Questions →