PSYCH 1X03 Final Exam Review
Questions With Correct Answers
Sehar wants to know if she can pay people to like her, and decides to
| | | | | | | | | | | | | | |
test the idea on her classmates. The first half of the class to arrive to
| | | | | | | | | | | | | | |
lecture are offered $10 to attend a party she's throwing, while the
| | | | | | | | | | | |
second half are invited to the party but are not offered cash. Which flaw
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|is NOT present in this research design?
| | | | | |
A)
Biased sampling |
B)
Experimenter bias |
C)
Non random assignment
| |
D)
Practice effect - CORRECT ANSWER✔✔-D) Practice effect
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In a frequency distribution, a curve reaches a maximum at an off centre
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point along the graph. How would you best describe this distribution?
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A)
,This is not a normal distribution, and the point's value on the x-axis
| | | | | | | | | | | | |
represents the frequency of the corresponding value on the y-axis.
| | | | | | | | |
B)
This is a normal distribution, and the point's value on the x-axis
| | | | | | | | | | | |
represents the frequency of the corresponding value on the y-axis.
| | | | | | | | |
C)
This is a normal distribution, and the point's value on the y-axis
| | | | | | | | | | | |
represents the frequency of the corresponding value on the x-axis.
| | | | | | | | |
D)
This is not a normal distribution, and the point's value on the y-axis
| | | | | | | | | | | | |
represents the frequency of the corresponding value on the x-axis. -
| | | | | | | | | | |
CORRECT ANSWER✔✔-D) This is not a normal distribution, and the
| | | | | | | | | |
point's value on the y-axis represents the frequency of the
| | | | | | | | | |
corresponding value on the x-axis. | | | |
Artin is looking to test his theory that drinking caffeine before a math
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test has a positive effect on performance. His experimental group is
| | | | | | | | | | |
administered 500 mL of caffeinated coffee 30 minutes prior to the test.
| | | | | | | | | | | |
Which of the following would act as the best control group?
| | | | | | | | | |
A)
Participants picked from the same population are given 500 mL of
| | | | | | | | | | |
caffeine-free coffee 30 minutes prior to the test.
| | | | | | |
B)
,Participants picked from the same population are given 500 mL of
| | | | | | | | | | |
caffeinated coffee 30 minutes prior to the test.
| | | | | | |
C)
Participants picked from the same population are given 500 mL of water
| | | | | | | | | | |
30 minutes prior to the test.
| | | | | |
D)
Participants picked from the same population are administered the test
| | | | | | | | | |
without any prior beverage. - CORRECT ANSWER✔✔-A) Participants
| | | | | | | |
picked from the same population are given 500 mL of caffeine-free
| | | | | | | | | | |
coffee 30 minutes prior to the test.
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Dr. Brown has designed a new "special pill" that he believes will increase
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attention span. To test his hypothesis, Dr. Brown measures the attention
| | | | | | | | | | |
span of 40 undergraduate students. in an attention span task, then
| | | | | | | | | | | |
administers the special pill to all 40 participants before redoing the
| | | | | | | | | | |
attention span task. Which of the following statements regarding Dr.
| | | | | | | | | |
Brown's experiment is true?
| | |
A)
There is no independent variable in Dr. Brown's experiment because all
| | | | | | | | | | |
participants receive the "special pill". | | | |
B)
Practice effects are possible because participants repeat the same
| | | | | | | | |
attention span task. | |
C)
, The independent variable is the participants' performance on the
| | | | | | | | |
attention span task.
| |
D)
The between-participants design of the experiment may have
| | | | | | | |
confounding variables. - CORRECT ANSWER✔✔-B)
| | | |
Practice effects are possible because participants repeat the same
| | | | | | | | |
attention span task.
| |
Which of the following statements about descriptive statistics is true?
| | | | | | | | |
A)
The median is considered the most vulnerable to outlying data points.
| | | | | | | | | |
B)
The standard deviation allows scientists to determine the
| | | | | | | |
generalizability of the data. | | |
C)
The p-value determines statistical significance at a level below 0.05.
| | | | | | | | |
D)
A histogram plots the frequency of values found within the dataset. -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-D)
|
A histogram plots the frequency of values found within the dataset.
| | | | | | | | | |
Which of the following statements about histograms is most correct?
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Questions With Correct Answers
Sehar wants to know if she can pay people to like her, and decides to
| | | | | | | | | | | | | | |
test the idea on her classmates. The first half of the class to arrive to
| | | | | | | | | | | | | | |
lecture are offered $10 to attend a party she's throwing, while the
| | | | | | | | | | | |
second half are invited to the party but are not offered cash. Which flaw
| | | | | | | | | | | | |
|is NOT present in this research design?
| | | | | |
A)
Biased sampling |
B)
Experimenter bias |
C)
Non random assignment
| |
D)
Practice effect - CORRECT ANSWER✔✔-D) Practice effect
| | | | | |
In a frequency distribution, a curve reaches a maximum at an off centre
| | | | | | | | | | | | |
point along the graph. How would you best describe this distribution?
| | | | | | | | | |
A)
,This is not a normal distribution, and the point's value on the x-axis
| | | | | | | | | | | | |
represents the frequency of the corresponding value on the y-axis.
| | | | | | | | |
B)
This is a normal distribution, and the point's value on the x-axis
| | | | | | | | | | | |
represents the frequency of the corresponding value on the y-axis.
| | | | | | | | |
C)
This is a normal distribution, and the point's value on the y-axis
| | | | | | | | | | | |
represents the frequency of the corresponding value on the x-axis.
| | | | | | | | |
D)
This is not a normal distribution, and the point's value on the y-axis
| | | | | | | | | | | | |
represents the frequency of the corresponding value on the x-axis. -
| | | | | | | | | | |
CORRECT ANSWER✔✔-D) This is not a normal distribution, and the
| | | | | | | | | |
point's value on the y-axis represents the frequency of the
| | | | | | | | | |
corresponding value on the x-axis. | | | |
Artin is looking to test his theory that drinking caffeine before a math
| | | | | | | | | | | | |
test has a positive effect on performance. His experimental group is
| | | | | | | | | | |
administered 500 mL of caffeinated coffee 30 minutes prior to the test.
| | | | | | | | | | | |
Which of the following would act as the best control group?
| | | | | | | | | |
A)
Participants picked from the same population are given 500 mL of
| | | | | | | | | | |
caffeine-free coffee 30 minutes prior to the test.
| | | | | | |
B)
,Participants picked from the same population are given 500 mL of
| | | | | | | | | | |
caffeinated coffee 30 minutes prior to the test.
| | | | | | |
C)
Participants picked from the same population are given 500 mL of water
| | | | | | | | | | |
30 minutes prior to the test.
| | | | | |
D)
Participants picked from the same population are administered the test
| | | | | | | | | |
without any prior beverage. - CORRECT ANSWER✔✔-A) Participants
| | | | | | | |
picked from the same population are given 500 mL of caffeine-free
| | | | | | | | | | |
coffee 30 minutes prior to the test.
| | | | | |
Dr. Brown has designed a new "special pill" that he believes will increase
| | | | | | | | | | | |
attention span. To test his hypothesis, Dr. Brown measures the attention
| | | | | | | | | | |
span of 40 undergraduate students. in an attention span task, then
| | | | | | | | | | | |
administers the special pill to all 40 participants before redoing the
| | | | | | | | | | |
attention span task. Which of the following statements regarding Dr.
| | | | | | | | | |
Brown's experiment is true?
| | |
A)
There is no independent variable in Dr. Brown's experiment because all
| | | | | | | | | | |
participants receive the "special pill". | | | |
B)
Practice effects are possible because participants repeat the same
| | | | | | | | |
attention span task. | |
C)
, The independent variable is the participants' performance on the
| | | | | | | | |
attention span task.
| |
D)
The between-participants design of the experiment may have
| | | | | | | |
confounding variables. - CORRECT ANSWER✔✔-B)
| | | |
Practice effects are possible because participants repeat the same
| | | | | | | | |
attention span task.
| |
Which of the following statements about descriptive statistics is true?
| | | | | | | | |
A)
The median is considered the most vulnerable to outlying data points.
| | | | | | | | | |
B)
The standard deviation allows scientists to determine the
| | | | | | | |
generalizability of the data. | | |
C)
The p-value determines statistical significance at a level below 0.05.
| | | | | | | | |
D)
A histogram plots the frequency of values found within the dataset. -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-D)
|
A histogram plots the frequency of values found within the dataset.
| | | | | | | | | |
Which of the following statements about histograms is most correct?
| | | | | | | | |
