Behavioral Sciences STAT 2nd Edition by Gary Heiman – Test Bank
To Purchase this Complete Test Bank with Answers Click the link Below
https://tbzuiqe.com/product/behavioral-sciences-stat-2nd-edition-by-gary-heiman-test-bank/
If face any problem or
Further information contact us At tbzuiqe@gmail.com
Sample Test
Chapter 03
Multiple Choice
1. Adding
numbers is an important procedure in Instead of saying “add up all of the
scores,” we use the
symbol
1.
2.
3. Σ.
4.
ANSWER: c DIFFICULTY: Easy REFERENCES: p. 37
Some New Symbols and Procedures
KEYWORDS: summation
2. The mode is defined as
1. the
most frequently occurring
2. the
mathematical center of the
3. the
smallest deviation from the
4. the
point at or below which 50% of the scores
ANSWER: a DIFFICULTY: Easy REFERENCES: p. 39
Computing the Mean, Median, and Mode
KEYWORDS: mode
3. With
respect to other scores in a distribution, measures of central tendency
1. are
around the other
2. are
the points around which most of the scores are
3. usually
fall in the tails or extremes of the
4. are
never actually equal to one of the scores in the
ANSWER: b DIFFICULTY: Easy REFERENCES: p. 38
What Is Central Tendency?
KEYWORDS: central
tendency
4. Why shouldn’t the mode
be used with the following set of scores? 2, 5, 3, 3, 4, 2, 4, 5, 1, 1
1. The
data are obviously not
2. There
is no
3. The
scores are positively
4. The
scores are negatively
ANSWER: b DIFFICULTY: Easy REFERENCES: pp.
39-40
Computing the Mean, Median, and Mode
KEYWORDS: mode
5. The median is defined
as
1. the
most frequently occurring
2. the
mathematical center of the
3. the
smallest deviation from the
4. the
point at or below which 50% of the scores
ANSWER: d DIFFICULTY: Easy REFERENCES: p. 40
Computing the Mean, Median, and Mode
KEYWORDS: median
6. The mean is defined as
1. the
most frequently occurring
2. the
mathematical center of the
3. the
smallest deviation from the center
4. the
point at or below which 50% of the scores
ANSWER: b DIFFICULTY: Easy REFERENCES: p. 41
Computing the Mean, Median, and Mode
KEYWORDS: mean
7. To
obtain the mean, we would
1. count
all the scores and divide by the total number of
2. add
all the scores and divide by the sum of all the
3. divide
the total number of scores by the sum of all the
4. add
all the scores and divide by the total number of
ANSWER: d DIFFICULTY: Easy REFERENCES: p. 41
Computing the Mean, Median, and Mode
KEYWORDS: mean
8. The
mean is used most often in behavioral research because researchers tend to
1. measure
variables that have interval or ratio scores, and the scores form approximately
normal
2. conduct
research in which the mathematical center of a distribution is
3. conduct
research in which only the most frequently occurring score is
4. measure
variables that have interval or ratio scores, and the scores usually do not
form a normal
ANSWER: a DIFFICULTY: Easy REFERENCES: pp.
41-42
Computing the Mean, Median, and Mode
KEYWORDS: mean
9. The
median is the appropriate measure of central tendency when
1. the
scale of measurement is
2. the
scores are ordinal, or when the distribution is skewed and the scores are
interval or
3. the
scale of measurement is
4. the
distribution is symmetrical, and the scale of measurement is interval or
ANSWER: b DIFFICULTY: Easy REFERENCES: pp.
42-43
Computing the Mean, Median, and Mode
KEYWORDS: measurement
scale | median | skewed distribution
10.
When we refer to a score’s deviation, we are referring to
1. how
far it is from other
2. how
far it is from the
3. how
close it is to the other
4. how
much error occurred in measuring
ANSWER: b DIFFICULTY: Easy REFERENCES: p. 44
Applying the Mean to Research
KEYWORDS: deviation
11.
With respect to a graph of a frequency distribution, a positive
deviation score
1. will
be located to the right of the
2. will
be located to the left of the
3. cannot
be
4. indicates
the raw score’s location relative to the
ANSWER: a
DIFFICULTY: Moderate
REFERENCES: p. 44-45
Applying the Mean to Research
KEYWORDS: deviation
12.
When a very skewed distribution is involved,
1. use
the mode because the most frequently occurring score will be the point around
which most scores will be
2. use
the median because it is more representative of most of the
3. use
the mean because it will best represent the extreme scores in the
4. no
measure of central tendency should be
ANSWER: b DIFFICULTY: Easy REFERENCES: pp.
43-44
Computing the Mean, Median, and Mode
KEYWORDS: extreme
score | median
13.
The mean is the preferred measure of central tendency when
1. the
scale of measurement is
2. the
scale of measurement is ordinal, interval, or ratio, and the distribution is
3. the
scale of measurement is
4. the
distribution is symmetrical, and the scale of measurement is interval or
ANSWER: d DIFFICULTY: Easy REFERENCES: pp.
43-44
Computing the Mean, Median, and Mode
KEYWORDS: mean
| measurement scale | symmetrical distribution
14.
An experimenter investigated the ability to concentrate under
different conditions of Concentration was measured as the amount of time it
took the participant to complete a word puzzle. How should the experimenter
summarize the scores on the dependent variable?
1. Find
the mode for crowding because crowding scores are
2. Find
the mean amount of crowding, if crowding scores are normally
3. Find
the mean amount of time it took to solve the puzzle, if time scores are
normally
4. Find
the median amount of time it took to solve the puzzle because time scores are
ANSWER: c DIFFICULTY: Easy REFERENCES: pp.
43-44
Computing the Mean, Median, and Mode
KEYWORDS: central
tendency | normal distribution
15.
In order to decide which measure of central tendency is
appropriate, you must first determine
1. the
appropriate graph to use and the independent
2. the
appropriate graph to use and the dependent
3. how
the data will be
4. the
scale of measurement being used and the shape of the
ANSWER: d
DIFFICULTY: Moderate
REFERENCES: p. 44
Computing the Mean, Median, and Mode
KEYWORDS: central
tendency | measurement scale
16.
The best predictor of an individual score in a sample of scores
is the
1. sum
of the deviations of the scores from the
2. score
minus the
3. mean
of the sample of
4. total
error in the sample of
ANSWER: c DIFFICULTY: Easy REFERENCES: pp.
44-45
Applying the Mean to Research
KEYWORDS: deviation
17.
Error refers
to expected errors in predicting unknown scores and is represented by
1. the
deviation of the median from the
2. a
statistic obtained from a skewed
3. the
deviation of a score from the
4. the
differences between raw scores in a
ANSWER: c
DIFFICULTY: Moderate
REFERENCES: p. 45
Applying the Mean to Research
KEYWORDS: deviation
18.
A deviation is more informative than a raw score because it
1. describes
the shape of the
2. has a
greater numeric
3. is a
transformation of the raw
4. gives
the score’s location relative to the
ANSWER: d
DIFFICULTY: Moderate
REFERENCES: pp. 45-46
Applying the Mean to Research
KEYWORDS: deviation
19.
When we graph the results of an experiment, the Y axis indicates
the
1. measure
of central tendency we have used for the dependent
2. raw
score values for each subject on the dependent
3. raw
score values for each subject on the independent
4. levels
of the independent
ANSWER: a DIFFICULTY: Easy REFERENCES: p. 47
Applying the Mean to Research
KEYWORDS: central
tendency | relationship
20.
When we graph results from an experiment, a line graph is
appropriate when
1. the
independent variable is interval or
2. the
independent variable is nominal or
3. the
dependent variable is nominal or
4. the
dependent variable is interval or
ANSWER: a DIFFICULTY: Easy REFERENCES: p. 47
Applying the Mean to Research
KEYWORDS: experiment
| line graph
21.
µ is
the symbol for the
1. population
2. population
3. population
4. sample
ANSWER: c DIFFICULTY: Easy REFERENCES: p. 49
Describing the Population Mean
KEYWORDS: population
mean
22.
The population mean is estimated by
1. calculating
the mean of as many scores as we can get from the
2. calculating
the mean of a sample drawn from the
3. calculating
the mean of a sample and then transforming it to reflect the size of the
4. calculating
all measures of central tendency for a sample drawn from the
ANSWER: b DIFFICULTY: Easy REFERENCES: p. 49
Describing the Population Mean
KEYWORDS: population
mean
23.
When the mean is used to predict scores, a deviation indicates
1. the
sample is representative of the
2. the
difference between the we predict and the score an individual actually
3. the
sum of all the
4. the
individual’s observed
ANSWER: b
DIFFICULTY: Moderate
REFERENCES: p. 44
Applying the Mean to Research
KEYWORDS: deviation
24.
What is the ΣX for the scores of 5, 1, 5, 2, and 10?
1. 23
500
2. c. 5
4.6
ANSWER: a DIFFICULTY: Easy REFERENCES: p. 37
Some New Symbols and Procedures
KEYWORDS: Sigma
25.
Which of the following distributions are unimodal? 4, 4, 4, 4, 5
26.
1, 2, 3, 4, 5
27.
1, 1, 3, 5, 5
28.
1, 1.1, .1, 11, .11
ANSWER: a DIFFICULTY: Easy REFERENCES: p. 39
Computing the Mean, Median, and Mode
KEYWORDS: mode
26.
A bimodal distribution will have mode(s).
1. two
2. two
or fewer
3. two
or more
4. no
ANSWER: a DIFFICULTY: Easy REFERENCES: p. 39
Computing the Mean, Median, and Mode
KEYWORDS: mode
27.
What is the mean for the following set of scores: 19, 1, 1, 2,
2?
1. 5
2. 1
3. 2
4. 25
ANSWER: a DIFFICULTY: Easy REFERENCES: p. 41
Computing the Mean, Median, and Mode
KEYWORDS: Mean
28.
The mean tends to be lower than the median for distribution(s).
1. negatively
skewed
2. positively
skewed
3. normal
4. any
ANSWER: a
DIFFICULTY: Moderate
REFERENCES: p. 43
Computing the Mean, Median, and Mode
KEYWORDS: Comparing
Central Tendency/Skewed Distributions
29.
Suppose you received a 95 on an exam where the mean score was
What is your score’s deviation?
1. 12
-12
30.
89
31.
0
ANSWER: a DIFFICULTY: Easy REFERENCES: p. 44
Applying the Mean to Research
KEYWORDS: deviation
30.
The sum of the deviations around the
1. always
equals
2. always
equals
3. typically
but not always equals
4. typically
but not always equals
ANSWER: a DIFFICULTY: Easy REFERENCES: p. 44
Applying the Mean to Research
KEYWORDS: deviation
Subjective Short Answer
31.
Find the mode of the following data
8, 7, 2, 4, 4, 8, 2, 4, 6, 5, 7, 3, 9, 4, 5, 4, 7
ANSWER:
4
DIFFICULTY: Easy
REFERENCES: p. 39
Computing the Mean, Median, and Mode
KEYWORDS: mode
32.
Find the mode of the scores in the following frequency
|
Score |
f |
|
9 |
2 |
|
8 |
4 |
|
7 |
8 |
|
6 |
6 |
|
5 |
4 |
|
4 |
3 |
|
3 |
2 |
ANSWER:
7
DIFFICULTY: Easy
REFERENCES: p. 39
Computing the Mean, Median, and Mode
KEYWORDS: mode
33.
What shape would you say best describes the following set of
scores?
2, 2, 3, 3, 3, 3, 4, 4, 5, 6, 7, 7, 8, 8, 8, 8, 9, 9
ANSWER: bimodal DIFFICULTY: Moderate REFERENCES: p.
39
Computing the Mean, Median, and Mode
KEYWORDS: bimodal
34.
Find the mode of each of the following two data
Set A: 35, 14, 30, 22, 19, 43, 35, 24, 27, 30, 32, 41, 20, 21,
30, 25, 20, 19, 18, 28
Set B: 35, 14, 30, 22, 19, 43, 35, 24, 27, 30, 32, 41, 209, 21,
30, 25, 20, 19, 18, 28
Does the extreme score (209) impact the mode? Explain.
ANSWER: Set
A: 30 Set B: 30
The mode was not impacted by the extreme score. The mode
remained the same.
DIFFICULTY: Difficult
REFERENCES: p. 39
Computing the Mean, Median, and Mode
KEYWORDS: extreme
score | median
35.
Find the median of the following data
8, 7, 2, 4, 4, 8, 2, 4, 6, 5, 7, 3, 9, 4, 5, 4, 7
ANSWER:
5
DIFFICULTY: Moderate
REFERENCES: p. 40
Computing the Mean, Median, and Mode
KEYWORDS: median
36.
Find the mean of the following data
8, 7, 2, 4, 4, 8, 2, 4, 6, 5, 7, 3, 9, 4, 5, 4, 7
ANSWER:
5.24
DIFFICULTY: Moderate
REFERENCES: p. 41
Computing the Mean, Median, and Mode
KEYWORDS: mean
37.
Find the mean of the scores in the following frequency
|
Score |
f |
|
9 |
2 |
|
8 |
4 |
|
7 |
8 |
|
6 |
6 |
|
5 |
4 |
|
4 |
3 |
|
3 |
2 |
ANSWER:
6.21
DIFFICULTY: Moderate
REFERENCES: p. 41
Computing the Mean, Median, and Mode
KEYWORDS: mean
38.
In an effort to quit smoking, Pat began eating butterscotch hard
For the month of September, Pat’s mean was 24 pieces of candy per day. What was
the total number
of butterscotch candies that Pat consumed in September?
ANSWER:
720
DIFFICULTY: Difficult
REFERENCES: p. 41
Computing the Mean, Median, and Mode
KEYWORDS: N
39.
Find the mean of the following
Score f 8 3
7 1
6 0
5 4
4 2
3 3
2 1
1 5
ANSWER:
3.95
DIFFICULTY: Difficult
REFERENCES: p. 41
Computing the Mean, Median, and Mode
KEYWORDS: mean
40.
For the following order of the measures of centrality, draw the
shape that best describes the associated
ANSWER: (negatively
skewed)
DIFFICULTY: Moderate
REFERENCES: p. 43
Computing the Mean, Median, and Mode
KEYWORDS: negatively
skewed
41.
Find the deviation from the mean for each value in the following
Score f 8 3
7 1
6 0
5 4
4 2
3 3
2 1
1 5
ANSWER: 4.05,
4.05, 4.05, 3.05, 1.05, 1.05, 1.05, 1.05, 0.05, 0.05, -0.95, -0.95, -0.95,
-1.95, -2.95, -2.95, -2.95,
-2.95, -2.95
DIFFICULTY: Difficult
REFERENCES: p. 44
Applying the Mean to Research
KEYWORDS: deviation
from the mean
42.
For the following data set, find the mode, median, and the What
shape do these measures of centrality suggest for the data?
Score f 37 2
36 4
35 8
34 3
33 1
32 8
31 3
30 1
ANSWER: Mode
= 35 and 32
Mdn = 34
= 982 / 30 = 32.73
Bimodal DIFFICULTY: Difficult REFERENCES: pp.
39-44
Computing the Mean, Median, and Mode
KEYWORDS: distribution
shape | median | mode
43.
For the following data set, find the mode, median, and the What
shape do these measures of centrality suggest for the data?
Score f 88 2
87 4
86 7
85 9
84 15
83 1
ANSWER: Mode
= 84
Mdn = 85
= 3,234 / 38 = 85.11
Negatively skewed DIFFICULTY: Difficult REFERENCES: pp.
39-44
Computing the Mean, Median, and Mode
KEYWORDS: distribution
shape | median | mode
44.
The equipment failed to record the reaction time for one trial
in an The reaction times (in milliseconds) for the other trials were 505, 630,
490, 650, and 560. What is the best estimate for the missing value?
ANSWER:
567
DIFFICULTY: Moderate
REFERENCES: p. 44
Applying the Mean to Research
KEYWORDS: estimate
| mean
45.
For the following set of scores, what is (are) ?
7, 8, 10, 10, 11, 12, 13, 13, 15
ANSWER: –4,
–3, –1, –1, 0, 1, 2, 2, 4
DIFFICULTY: Moderate
REFERENCES: Applying the Mean to Research
1. 44
KEYWORDS: deviation
46.
Five students took a personality Their deviation scores were –4,
+3, +1, –2, and +2. Assuming that these scores
form a normal distribution, which deviation represents the
highest raw score?
ANSWER: +3
DIFFICULTY: Difficult
REFERENCES: p. 44
Applying the Mean to Research
KEYWORDS: deviation
| normal distribution
47.
Five students took a personality Their deviation scores were –4,
+3, +1, –2, +2. Assuming that these scores
form a normal distribution, which score(s) would have the
highest frequency?
ANSWER: +1
DIFFICULTY: Difficult
REFERENCES: p. 44
Applying the Mean to Research
KEYWORDS: deviation
| normal distribution
48.
Five students took a personality Their deviation scores were –4,
+3, +1, –2, +2. Assuming that these scores form a normal distribution, arrange
the deviations so their order represents their ranking in terms of frequency,
from highest to lowest?
ANSWER: +1,
+2 and −2, +3, –4
DIFFICULTY: Difficult
REFERENCES: p. 44
Applying the Mean to Research
KEYWORDS: deviation
| normal deviation
49.
Based on the following results of an experiment, how many errors
would a person who drank 4 of alcohol make?
Mean Number of Errors on Driving Test
ANSWER:
12
DIFFICULTY: Easy
REFERENCES: p. 47
Applying the Mean to Research
KEYWORDS: experiment
| graph
50.
Does the following graph indicate the existence of a
relationship? Explain your
Mean Number of Errors on Driving Test
ANSWER: Yes.
The means change as the conditions change. The more alcohol consumed, the
higher the mean for that group.
DIFFICULTY: Moderate
REFERENCES: p. 47
Applying the Mean to Research
KEYWORDS: experiment
| graph
51.
Does the following graph indicate the existence of a
relationship? Explain your
ANSWER: No.
The means do not change as the conditions change. No matter the category, the
group mean is consistent at 20.
DIFFICULTY: Moderate
REFERENCES: pp. 47-48
Applying the Mean to Research
KEYWORDS: experiment
| graph
52.
An experiment has been conducted using three different
conditions on the independent For each of the conditions, a sample group mean
of 15 was obtained. Assuming each condition results in a normal distribution,
how many normal distributions do we envision from this experiment, and what are
their population means?
ANSWER: Since
all the sample means are the same, we have not found a relationship. This means
there is one normal distribution and that distribution has a population mean of
μ = 15.
DIFFICULTY: Difficult
REFERENCES: p. 49
Describing the Population Mean
KEYWORDS: population
mean
53.
During the past six baseball games he played, Jimmy got 3, 2, 0,
1, 1, and 3 What is his ΣX?
ANSWER: ΣX =
3+2+0+1+1+4 = 11
DIFFICULTY: Easy
REFERENCES: p. 37
Some New Symbols and Procedures
KEYWORDS: Sigma
Comments
Post a Comment