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WorksheetsResearch Methods Quiz DP1.1-1.4
Total questions: 30
Worksheet time: 1hrs 4mins
Name
Class
Date
1.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
2.
A researcher wants to conduct an experiment to determine if eating a cookie before class each day improves student grades. He uses two psychology classes for the experiment, providing daily cookies to one and nothing to the other. At the end of the semester, the researcher compares the final grades of students in the two classes. What is the independent variable for this experiment?
a)
The students in the class that received the cookies
b)
The presence or absence of the cookies
c)
The students in the class that didn't receive cookies
d)
the period of the day that the two classes met
3.
This variable in an experiment is the one being deliberately manipulated by the scientist.
a)
dependent variable
b)
independent variable
c)
data
d)
control group
4.
The population in a research study is
a)
the whole group of research interest.
b)
the smaller group that has been chosen from the group of research interest.
c)
exactly the same as the sample.
d)
always smaller than the sample.
5.
Mr. Yamamoto sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
distance traveled by the ball
b)
height of the ramp
c)
mass of the ball
d)
weight of the ball
6.
In a study on the effect of a driver training program on driving skill, a possible operationalisation of the dependent variable would be
a)
driving quality
b)
number of accidents
c)
hours spent training
d)
amount of time spent in traffic
7.
Dr. Schulte wants to investigate if aggressive behaviour in children is increased if they view violent videos. In this instance, the dependent variable is
a)
violent videos
b)
aggressive behaviour
c)
a placebo
d)
the control condition
8.
Which statement is correct?
a)
A stratified sample is more likely to be representative of the population than a convenience sample.
b)
A random sample is always representative of a population.
c)
A convenience sample is more likely to be representative of the population than a stratified sample.
d)
A small random sample is more likely to be representative of the population than a large stratified sample.
9.
Which of the following are examples of individual participant differences?
a)
experimenter's tone, volume and body language.
b)
time of day, noise level, temperature, location.
c)
prior experience, motivation, intelligence, educational background.
d)
extraneous variables and confounding variables.
10.
The variable measured in an experiment is
a)
the independent variable.
b)
the extraneous variable.
c)
the dependent variable.
d)
the confounding variable.
11.
An extraneous variable
a)
is deliberately manipulated in an experiment.
b)
is an uncontrolled variable has an unwanted effect on the DV.
c)
is measured in an experiment.
d)
occurs only in field studies.
12.
Selecting participants who just happen to be available is called:
a)
Convenience sampling
b)
Volunteer sampling
c)
Random sampling
d)
Stratified sampling
13.
In a study of effects of alcohol on driving ability, the control group should be given
a)
a high dosage of alcohol
b)
one-half the dosage given the experimental group
c)
a driving test before and after drinking alcohol
d)
no alcohol at all
14.
Operational definitions are used for which of the following reasons?
a)
They enable researchers to replicate studies by precisely describing the variables and how they are used.
b)
They exclude mental processes from being studied, as they are no longer considered part of the scientific study of psychology.
c)
They determine which test of statistical significance will be used to analyze the results of the experiment.
d)
They determine whether the experiment is better suited for a laboratory or a field setting.
15.
Neither the researcher nor the subjects knew whether or not they received the drug studied or a placebo. This is an example of
a)
single blind procedure.
b)
the placebo effect.
c)
double blind procedure.
d)
the order effect.
16.
You decide to test your belief that men drink more soft drinks than women by finding out whether more soft drinks are consumed per day in the men's dorm than in the women's dorm. Your belief is a(n) _____, and your research prediction is a(n) ______.
a)
hypothesis; theory
b)
theory; hypothesis
c)
independent variable; dependent variable
d)
dependent variable; independent variable
17.
The variable that may change in response to manipulations of the variable being studied.
a)
Experimental condition
b)
Control condition
c)
Independent variable
d)
Dependent variable
18.
You are conducting a sleep survey and decide to survey everyone who walks in the front doors to school. What type of sampling is this?
a)
Convenience
b)
Random
c)
Stratified
d)
Random stratified
19.
What is the name given to the group that receives the treatment?
a)
Experimental group
b)
Control group
c)
Placebo group
d)
Dependent group
20.
What is the name given to the Group that does not receive the treatment?
a)
Experimental group
b)
Control group
c)
Placebo group
d)
Dependent group
21.
Anything that affects the dependent variable and that may unintentionally vary between the experimental conditions of a study
a)
Independent variable
b)
Extraneous variable
c)
Population
d)
Correlation
22.
Mr. Krabbs is trying a new money making scheme. On Tuesdays he is selling his crabby patties on colored buns. He usually averages 25 customers per day. On Tuesdays he now averages 27 customers.
What was the dependent variable?
What was the dependent variable?
a)
The types of customers
b)
The crabby patty
c)
The colored buns
d)
The number of customers
23.
A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?
a)
heart rate
b)
type of exercise
c)
amount of exercise
d)
time of day exercise occurs
24.
In an experimental study of the effects of anxiety on self-esteem, anxiety would be the ________ variable.
a)
experimental
b)
dependent
c)
correlational
d)
independent
25.
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
26.
Simba is part of a study designed to test the ability of a new medication to cure the migraines of people who experience chronic migraines. After a few days, Johnny finds that the pill has alleviated his migraines and he experiences far fewer than usual. However, Simba is part of the group that is receiving the placebo. Simba's group was given the placebo to control for
a)
participant error.
b)
experimenter bias.
c)
participant expectations.
d)
experimenter expectations.
27.
Jessie is concerned about how tired his classmates seem. He created a drink that he thinks will boost their energy. He recruits 100 classmates with a history of tiredness. He has 50 of them drink his new special energy drink. The other 50 drink a beverage that looks like the special energy drink, but is just water and food coloring. Both groups were told that they were getting the special drink that would boost energy. After 2 hours, 30 classmates in the first group reported having more energy and 8 classmates in the second group reported having more energy.
What is the independent variable?
What is the independent variable?
a)
Amount of energy
b)
Special energy drink vs. placebo energy drink
c)
The food colouring
d)
Level of tiredness
28.
Mr Wamba conducts an experiment in which he would like to measure the stress levels ofAustralian high school teachers. His sample includes teachers from King State High School, Pedare High School and Tyndale High School. He includes 100 teachers in the sample. What is the weakness of this investigation?
a)
The sample size is too small
b)
The sample size is too big and will make the investigation too expensive
c)
The sample lacks representativeness
d)
The sample size lacks representativeness
29.
The sampling procedure where everybody has an equal chance of being included in a study:
a)
Stratified sampling
b)
Survey
c)
Random sampling
d)
Convenience sampling
30.
Ideally, a sample is __________________ of the population. This is so that the results of the study can be ____________________ to the population of interest.
a)
not representative; applied or generalised
b)
representative; applied or generalised
c)
representative; hard to apply
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