Transcript Psychology 302 Quantitative Methods

Psychology 302
Quantitative Methods
Review Quiz
1. Which of the following
frequency distributions if
positively skewed?
1. A
2. B
3. C
A
B
C
1. Which of the following
frequency distributions if
positively skewed?
1. A
2. B
3. C
A
B
C
2. Which of the following is
measurement data?
A.
B.
C.
D.
E.
Number of students in psy 302
First place team
Smith wears jersey number 22
Ranking scale
c&d
2. Which of the following is
measurement data?
A.
B.
C.
D.
E.
Number of students in psy 302
First place team
Smith wears jersey number 22
Ranking scale
c&d
3. Total jobs at all U.S. auto plants and parts factories
will rise 10% to about 650,000 this year, says the Center
for Automotive Research. 650,000 jobs is an example of
____ data.
A. Nominal
B. ordinal
C. measurement
D. A & B
E. all of the above
3. Total jobs at all U.S. auto plants and parts factories
will rise 10% to about 650,000 this year, says the Center
for Automotive Research. 650,000 jobs is an example of
____ data.
A. Nominal
B. ordinal
C. measurement
D. A & B
E. all of the above
4. Which of the following is true of the
mean?
A. The mean uses all the
data.
B. The individual has a
mean.
C. We calculate the mean
on Categorical Data
D. All of the above
4. Which of the following is true of the
mean?
A. The mean uses all the
data.
B. The individual has a
mean.
C. We calculate the mean
on Categorical Data
D. All of the above
5. Which of the following is concerned with frequency
of values of one variable called X
A. The mean
B. the standard deviation
C. a frequency
distribution
D. the median
E. all of the above
5. Which of the following is concerned with frequency
of values of one variable called X
A. The mean
B. the standard deviation
C. a frequency
distribution
D. the median
E. all of the above
6. We use a sample statistic to
estimate a population _____.
A.
B.
C.
D.
E.
Proportion
Standard Deviation
Probability
Proband
Parameter
6. We use a sample statistic to
estimate a population _____.
A.
B.
C.
D.
E.
Proportion
Standard Deviation
Probability
Proband
Parameter
7. Which of the following is an
example of categorical data?
A. Mary has a 3.75 GPA
B. Tyrone 13 years old
C. Tom Brady is number
12
D. Newt Gingrich
received 11,234 votes
E. It was 37 degrees this
morning
7. Which of the following is an
example of categorical data?
A. Mary has a 3.75 GPA
B. Tyrone 13 years old
C. Tom Brady is number
12
D. Newt Gingrich
received 11,234 votes
E. It was 37 degrees this
morning
8. Based on the table below, the University of Texas had a
score of 4.2 and a rank of 13. Which of the following is true?
A. 4.2 is measurement
data
B. 13 is measurement
data
C. 4.2 is categorical data
D. 13 is categorical data
E. A and D are true
8. Based on the table below, the University of Texas had a
score of 4.2 and a rank of 13. Which of the following is true?
A. 4.2 is measurement
data
B. 13 is measurement
data
C. 4.2 is categorical data
D. 13 is categorical data
E. A and D are true
9. A study of a sleeping pill gave the pill to one group of
insomniacs and a placebo (sugar pill) to the other. They then
measured sleeping time in minutes. The dependent variable is:
A. which pill they got
B. the number of subjects
in each group
C. the number of subjects
in the treatment group
D. amount of active
ingredient in the pill
E. sleeping time in minutes
9. A study of a sleeping pill gave the pill to one group of
insomniacs and a placebo (sugar pill) to the other. They then
measured sleeping time in minutes. The dependent variable is:
A. which pill they got
B. the number of subjects
in each group
C. the number of subjects
in the treatment group
D. amount of active
ingredient in the pill
E. sleeping time in
minutes
10. In a histogram the Y axis always
lists:
A.
B.
C.
D.
E.
categorical data
the interval
frequency
the value of X
all of the above
10. In a histogram the Y axis always
lists:
A.
B.
C.
D.
E.
categorical data
the interval
frequency
the value of X
all of the above
Bonus: If the scores are not all the same
they vary. We measure this variability with:
A. The mean
B. The correlation
coefficient
C. The standard deviation
D. Skewness
E. All of the above
Bonus: If the scores are not all the same
they vary. We measure this variability with:
A. The mean
B. The correlation
coefficient
C. The standard
deviation
D. Skewness
E. All of the above
s
 (x  x)
n 1
2
12. Which of the following is a
parameter?
A.
B.
C.
D.
E.
X
σ
X
M
All of the above
12. Which of the following is a
parameter?
A.
B.
C.
D.
E.
X
σ
X
M
All of the above