PSYED 2018
Practice Items - Solutions
Module 5
1. If you have a score of X = 76 on an exam, which set of parameters would give you the highest
position?
a. = 64, = 12
b. = 64, = 3
c. = 70, = 12
d. = 7
PSYED 2018
Practice Items - Solutions
Module 10
1. Montarello and Martins (2005) found that fifth-grade students completed more mathematics
problems correctly when simple problems were mixed in with t
PSYED 2018
Practice Items
Module 3
1. After 5 points are added to every score in a distribution, the mean is calculated and found to be
30. What was the value of the mean for the original distribution
PSYED 2018
Online
Assignment 3
1. Find the mean, median, and mode for the set of scores in the following frequency distribution
table:
X
f
9
2
8
1
7
3
6
4
5
6
4
2
3
2
2. A sample of n = 6 scores has a
PSYED 2018
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Assignment 8
1. For a population with a standard deviation of = 50:
a. How large a sample would be needed to have a standard error less than 5 points?
b. How large a sample would be
PSYED 2018
Practice Items - Solutions
Module 3
1. After 5 points are added to every score in a distribution, the mean is calculated and found to be
30. What was the value of the mean for the original
PSYED 2018
Practice Items
Module 2
1. If someone tells you that your score of 56 fell at the 73rd percentile this means that
a. 73% of the people scored better than you did
b. 73% of the people got a
PSYED 2018
Online
Assignment 1
1. Define the terms population, sample, parameter, and statistic, and explain how these terms are
related to each other.
2. A researcher would like to evaluate the claim
PSYED 2018
Practice Items - Solutions
Module 1
1. The relationship between a statistic and a parameter is the same as the relationship between
a. Dependent variable and independent variable
b. Descrip
PSYED 2018
Practice Items
Module 1
1. The relationship between a statistic and a parameter is the same as the relationship between
a. Dependent variable and independent variable
b. Descriptive statist
PSYED 2018
Practice Items
Module 9
1. A researcher would like to test the effectiveness of a newly developed growth hormone. The
researcher knows that under normal circumstances laboratory rats reach
PSYED 2018
Practice Items
Module 5
1. If you have a score of X = 76 on an exam, which set of parameters would give you the highest
position?
a. = 64, = 12
b. = 64, = 3
c. = 70, = 12
d. = 70, = 3
2. Wh
PSYED 2018
Online
Assignment 6
1. A jar contains 30 black marbles, 40 white marbles, and 10 blue marbles.
a. If you randomly select a marble from the jar, what is the probability that you will get a w
PSYED 2018
Practice Items
Module 4
1. Which of the following samples would have the largest value for sample variance?
a. 1, 3, 5
b. 11, 13, 15
c. 51, 53, 55
d. All the samples would have exactly the
PSYED 2018
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Assignment 4
1. When the sun cannot be seen (overcast day), homing pigeons find their way back to their roots
using magnetic cues from Earth (Walcott, 1972).
Consider the following s
PSYED 2018
Practice Items - Solutions
Module 2
1. If someone tells you that your score of 56 fell at the 73rd percentile this means that
a. 73% of the people scored better than you did
b. 73% of the p
PSYED 2018
Online
Assignment 7
1. The distribution of scores on the SAT is approximately normal with
a.
b.
c.
d.
and
100
.
What proportion of the population have SAT scores above 475?
What proportion
PSYED 2018
Practice Items - Solutions
Module 4
1. Which of the following samples would have the largest value for sample variance?
a. 1, 3, 5
b. 11, 13, 15
c. 51, 53, 55
d. All the samples would have
PSYED 2018
Online
Assignment 5
1. A negatively skewed distribution has
65
and
10
. If this entire distribution is
transformed into z-scores, describe the shape, mean, and standard deviation for the
PSYED 2018
Practice Items - Solutions
Module 9
1. A researcher would like to test the effectiveness of a newly developed growth hormone. The
researcher knows that under normal circumstances laboratory
PSYED 2018
Practice Items
Module 8
1. The values of the standard deviation and the standard error of the mean differ most when
a. n is small.
b. n is large.
c. The mean is large.
d. The mean is small.
PSYED 2018
Practice Items - Solutions
Module 8
1. The values of the standard deviation and the standard error of the mean differ most when
a. n is small.
b. n is large.
c. The mean is large.
d. The me
PSYED 2018
Practice Items - Solutions
Module 7
1. A roulette wheel has an equal number of alternating red and black numbered slots into one of
which the ball finally stops to determine the winner. If
PSYED 2018
Practice Items
Module 10
1. Montarello and Martins (2005) found that fifth-grade students completed more mathematics
problems correctly when simple problems were mixed in with their regular
PSYED 2018
Practice Items
Module 7
1. A roulette wheel has an equal number of alternating red and black numbered slots into one of
which the ball finally stops to determine the winner. If a gambler al
PSYED 2018
Practice Items - Solutions
Module 6
1. A die is tossed twice. A is the event, a 1 on the first toss; B is the event, a 2 or 3 on the
second toss. Find the probability P(A and B).
a.
b.
c.
d
PSYED 2018
Practice Items
Module 6
1. A die is tossed twice. A is the event, a 1 on the first toss; B is the event, a 2 or 3 on the
second toss. Find the probability P(A and B).
a.
b.
c.
d.
1
36
3
36
PSYED 2018
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Assignment 9
1. The value that is obtained for the z-score in a hypothesis test is determined by several factors.
For each of the following, indicate whether the effect would be to p
Journal Reflection 3
Mackenzie Brown
Reflect on the different needs of your peers at your internship site. How might you address some
of the individual needs of your peers? How is your communication w
Mackenzie Brown
Journal Reflection 4
Reflection Question: Reflect on the aspects of the curriculum/activities at your internship site.
Have you had the opportunity to offer input in the planning of th