Psychology Quiz
19 questions · no time limit
0:00
Finish quiz
FOUNDATIONS & RESEARCH METHODS
Question 1
of 19
Flag for review
No time limit
Current
Answered
Flagged
Not seen
In a clinical trial, a 'double-blind' procedure is implemented to minimize the influence of:
A
pre-existing differences between participants in the experimental and control groups.
B
expectancy effects on the part of both the participants and the researchers.
C
non-random attrition of participants from the study over time.
D
selection bias in the recruitment of participants from the target population.
YOUR PROGRESS
19
QUESTIONS
Ready when you are
Answer in any order. Your progress shows here as you go.
QUESTIONS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
KEYBOARD
Pick an answer
A
B
C
D
Next question
↵
→
Previous
←
Flag for review
F