WorksheetsUnit 3- Research Methods
Total questions: 14
Worksheet time: 7mins
Name
Class
Date
1.
What is the difference between an experimental group and a control group in a psychological experiment? Explain your answer clearly.
a)
Experimental groups get only dependent variables
b)
Control groups don't do anything for an experiment
c)
The experimental group gets the IV; the control group doesn't.
d)
The control group gets the IV; the experiment group doesn't
2.
In a correlational study, when one variable goes up as another goes down is known as a:
a)
Illusory
correlation
b)
No
correlation
c)
Positive
correlation
d)
Negative correlation
3.
The score at the middle of a distribution (bell curve) is called a?
a)
Range
b)
Mean
c)
Median
d)
Mode
4.
In order to examine the social behavior of chimpanzees, researchers spent several years studying them in their natural habitat. Which research method was used in this example?
a)
Survey
b)
Naturalistic Observation
c)
Sample
d)
Experimental study
5.
When a test measures the variable it is suppose to measure, it has?
a)
Causality
b)
Reliability
c)
Validity
d)
Accuracy
6.
Out of the following correlations, which one represents the STRONGEST relationship?
a)
0.89
b)
-0.90
c)
0.23
d)
-0.16
7.
Steven is using a new testing instrument to measure behavior. The first time a participant takes this test they receive a score of . 25. The second time they take the test they receive a score of . 12. Steven administers the test a third time and the participant receives a score of . 38.Based on these scores this testing instrument has:
a)
Low validity
b)
High reliability
c)
Low reliability
d)
High Validity
8.
Researchers conducted an experiment on test anxiety with three groups. In the first group, the students studied for only 20 minutes and then took an exam. The second group studied for one hour and then took an exam. The third group spent several hours studying before taking the exam. In this experiment, the independent variable is:
a)
The amount of time spent studying
b)
The students
c)
The exam questions
d)
The scores on the exam
9.
Define what a sample is.
a)
A group of people taken to represent a given population
b)
A group that is randomly chosen to experiment on others
c)
A small amount of something
d)
A hypothesis
10.
What is a longitudinal study?
a)
A study that is conducted for a short time to yield a lot of information.
b)
A smaller case study
c)
A study done over a long period of time.
d)
A study that focuses on a specific topic or person
11.
What is the placebo effect?
a)
When a person guesses the correct answers unknowingly.
b)
When a person has expectations about a treatment that originally has no effect; thus it becomes effective
c)
When a person has expectations about a treatment and believes it will have no effect, thus is does not.
d)
All of these.
12.
Which of the following correlations has the WEAKEST relationship?
a)
0.24
b)
-.97
c)
0.16
d)
-.40
13.
How does standard deviation tell you where someone ranks on a test?
a)
It let's you know how far someone deviates from the mean.
b)
It tells you the average score only
c)
It shows percentages
d)
It only tells you things related to two variables
14.
What is the difference between a single-blind and a double-blind experiment?
a)
A single blind experiment is when both the researcher and the participants are unaware of the IV.
b)
A double blind experiment - no one knows what the IV is. A single blind experiment- the researcher knows the IV but the participants do not.
c)
Double blind makes sure that an experiment is run correctly
d)
None of the above
100 %
