GC PSY520 Full Course (Discussions+Assignments) Latest 2017 January
GC
PSY520 Week 1 Discussion 1 & 2 Latest 2017 January
dq 1
Review the levels of measurement terms in the
Statistics Visual Learner media piece. Compare and contrast Stevens’s four
scales of measurement, and explain when each type of scale should be used.
dq 2
The professor teaching a large introductory
class gives a final exam that has alternate forms, A, B, and C. A student
taking the exam using Form B is upset because she claims that Form B is much
harder than Forms A and C. Discuss how percentile point data might be useful to
determine if the student is correct.
GC
PSY520 Week 2 Discussion 1 & 2 Latest 2017 January
dq 1
The process of random sampling guarantees that
the sample selected will be representative of the population. Is this statement
true? Discuss.
dq 2
Review the video on Normal Distribution in the
Calculations section of the “Statistics Visual Learner” media piece.
Bob compares his SAT Verbal score of 400 to
Marge’s ACT Verbal score of 20. “I beat you,” he exclaims. “My
score is 20 times your score!” Although his multiplication is good, his
logic is faulty. Explain why.
GC
PSY520 Week 3 Discussion 1 & 2 Latest 2017 January
dq 1
Review the video “Linear
Correlation” in the Calculations section of the “Statistics Visual
Learner” media piece.
It is sometimes said that the higher the
correlation between two variables, the more likely the relationship is causal.
Do you think this is correct? Discuss.
dq 2
Discuss the strengths and weaknesses of
correlational and regression studies; discuss concepts such as positive and
negative correlations, correlation coefficients, confounding, and causality.
GC
PSY520 Week 4 Discussion 1 & 2 Latest 2017 January
dq 1
Explain why there is an inverse relationship
between committing a Type I error and committing a Type II error. What is the
best way to reduce both kinds of error?
dq 2
Review the term Significance
Testin the “Statistics Visual Learner” media piece.
When a newspaper or magazine article reports
the results of a study and draws a conclusion without also reporting whether
the results are statistically significant, what are the possible reasons for
doing so? How seriously should you take the conclusion offered in such a study?
Discuss.
GC
PSY520 Week 5 Discussion 1 & 2 Latest 2017 January
dq 1
Explain why using the t statistic may be an
appropriate alternative to using a z-score (use the concept of estimated
standard error to justify your answer).
dq 2
Discuss how the t-test for correlated groups
and the t-test for single samples are alike and different.
GC
PSY520 Week 6 Discussion 1 & 2 Latest 2017 January
dq 1
Review the four “ANOVA” videos in
the Calculations section of the “Statistics Visual Learner” media
piece.
Explain the major differences between
analyzing a one-way ANOVA versus a two-factor ANOVA, and explain why factorial
designs with two or more independent variables (or factors) can become very
difficult to interpret.
dq 2
Explain how the ANOVA technique avoids the
problem of the inflated probability of making Type I error that would arise
using the alternative method of comparing groups two at a time using the t-test
for independent groups.
GC
PSY520 Week 7 Discussion 1 & 2 Latest 2017 January
dq 1
Review the three “Non-parametric”
test videos in the Calculations section of the “Statistics Visual
Learner” media piece.
A researcher is examining preferences among
four new flavors of ice cream. A sample of n = 80 people is obtained. Each
person tastes all four flavors and then picks a favorite. The distribution of
preferences is as follows. Do these data indicate any significance preferences
among the four flavors? Test at the .05 level of significance.
Ice
Cream Flavor
A
B
C
D
12
18
28
22
dq 2
Is it true that parametric tests are generally
more powerful than nonparametric tests? If so, give two reasons why you might
choose to use a nonparametric test instead of a parametric test.
GC
PSY520 Week 8 Discussion 1 & 2 Latest 2017 January
dq 1
To determine whether a new sleeping pill has
an effect that varies with dosage, a researcher randomly assigns adult
insomniacs, in equal numbers, to receive either 4 or 8 grams of the sleeping
pill. The amount of sleeping time is measured for each subject during an 8-hour
period after the administration of the dosage. What type of design is this, and
what type of statistic is needed to analyze the data?
dq 2
Dr. Bill Board designs a 2 X 2
between-subjects factorial design, where Factor A is word frequency (low or
high) and Factor B is category cues (no cues or cues). Assume that the data are
interval. What type of statistic is needed to analyze the data?
GC PSY520
Week 2 Exercise Latest 2017 January
Details:
Complete the following exercises
from “Review Questions” located at the end of each chapter and put
them into a Word document to be submitted as directed by the instructor.
Chapter 1, numbers 1.8 and 1.9
Chapter 2, numbers 2.14, 2.17, and 2.18
Chapter 3, numbers 3.13, 3.14, 3.18, and 3.19
Chapter 4, numbers 4.9, 4.14, 4.17, and 4.19
Show all relevant work; use the
equation editor in Microsoft Word when necessary.
GC PSY520
Week 3 Probability Project Latest 2017 January
Details:
Use the document “Probability
Project” to complete the assignment.
While APA format is not required for
the body of this assignment, solid academic writing is expected, and
documentation of sources should be presented using APA formatting guidelines,
which can be found in the APA Style Guide, located in the Student Success
Center.
PSY-520 Graduate Statistics
Topic 3 – Probability Project
Directions:Use the following information to complete the assignment. While
APA format is not required for the body of this assignment, solid academic
writing is expected, and documentation of sources should be presented using APA
formatting guidelines, which can be found in the APA Style Guide, located in
the Student Success Center.
There are many misconceptions about
probability which may include the following.
· All
events are equally likely
· Later
events may be affected by or compensate for earlier ones
· When
determining probability from statistical data, sample size is irrelevant
· Results
of games of skill are unaffected by the nature of the participants
· “Lucky/Unlucky”
numbers can influence random events
· In
random event involving selection, results are dependent on number rather than
rations
· If
events are random then the results of a series of independent events are
equally likely
The following statements are all incorrect.
Explain the statements and the errors fully using the probability rules
discussed in topic two.
1. I have flipped and unbiased coin three
times and got heads, it is more likely to get tails the next time I flip it.
2. The Rovers play Mustangs. The Rovers can
win, loose, or draw, so the probability that they win is 1/3.
3. I roll two dice and ad the results. The
probability of getting a total of 6 is 1/12 because there are 12 different
possibilities and 6 is one of them.
4. Mr. Purple has to have a major operation.
90% of the people who have this operation make a complete recovery. There is a
90% chance that Mr. Purple will make a complete recovery if he has this
operation.
5. I flip two coins. The probability of
getting heads and tails is 1/3 because I can get Heads and Heads, Heads and
Tails, or Tails and Tails.
6. 13 is an unlucky number so you are less
likely to win raffles with ticket number 13 than with a different dumber.
GC
PSY520 Week 3 Exercise Latest 2017 January
Details:
Complete the following exercises located at
the end of each chapter and put them into a Word document to be submitted as
directed by the instructor.
Show all relevant work; use the equation
editor in Microsoft Word when necessary.
1. Chapter
6, numbers 6.7, 6.10, and 6.11
2. Chapter
7, numbers 7.8, 7.10, and 7.13
GC
PSY520 Week 4 Exercise Latest 2017 January
Details:
Complete the following exercises located at
the end of each chapter and put them into a Word document to be submitted as
directed by the instructor.
Show all relevant work; use the equation
editor in Microsoft Word when necessary.
1. Chapter
9, numbers 9.7, 9.8, 9.9, 9.13, and 9.14
2. Chapter
10, numbers 10.9, 10.10, 10.11, and 10.12
3. Chapter
11, numbers 11.11, 11.19, and 11.20
4. Chapter
12, numbers 12.7, 12.8, and 12.10
GC
PSY520 Week 5 Exercise Latest 2017 January
Details:
Complete the following exercises located at
the end of each chapter and put them into a Word document to be submitted as
directed by the instructor.
Show all relevant work; use the equation
editor in Microsoft Word when necessary.
1. Chapter
13, numbers 13.6, 13.8, 13.9, and 13.10
2. Chapter
14, numbers 14.11, 14.12, and 14.14
3. Chapter
15, numbers 15.7, 15.8, 15.10 and 15.14
GC
PSY520 Week 5 Correlation and Regression Latest 2017 January
Details:
Use the attached document “Correlation and Regression”
to complete the assignment.
While APA format is not required for the body
of this assignment, solid academic writing is expected, and documentation of
sources should be presented using APA formatting guidelines, which can be found
in the APA Style Guide, located in the Student Success Center.
This
benchmark assignment assesses the following programmatic competencies: 3.1
Interpret psychological phenomena using scientific reasoning.
PSY-520 Graduate Statistics
Topic 5– Benchmark – Correlation and
Regression Project
Directions:Use the following information to complete the questions below.
While APA format is not required for the body of this assignment, solid
academic writing is expected, and documentation of sources should be presented
using APA formatting guidelines, which can be found in the APA Style Guide,
located in the Student Success Center.
1. Select at least three variables that you
believe have a linear relationship.
a. Specify which variable is dependent and
which are independent.
2. Collect the data for these variables and
describe your data collection technique and why it was appropriate as well as
why the sample size was best.
a. Submit the data collected by submitting the
SPSS data file with your submission.
3. Find the Correlation coefficient for each
of the possible pairings of dependent and independent variables and describe
the relationship in terms of strength and direction.
4. Find a linear model of the relationship
between the three (or more) variables of interest.
5. Explain the validity of the model.
GC
PSY520 Week 6 Exercise Latest 2017 January
Details:
Complete the following exercises located at
the end of each chapter and put them into a Word document to be submitted as
directed by the instructor.
Show all relevant work; use the equation
editor in Microsoft Word when necessary.
1. Chapter
16, numbers 16.9, 16.10, 16.12 and 16.14
2. Chapter
17, numbers 17.6, 17.7, and 17.8
3. Chapter
18, numbers 18.8, 18.11, and 18.12
GC
PSY520 Week 7 Exercise Latest 2017 January
Details:
Complete the following exercises located at
the end of each chapter and put them into a Word document to be submitted as
directed by the instructor.
Show all relevant work; use the equation
editor in Microsoft Word when necessary.
1. Chapter
19, numbers 19.9, 19.10, 19.13, 19.14, and 19.16
2. Chapter
20, numbers 20.5, 20.6, 20.7, and 20.10
GCU PSY520 week 7 MANOVA ProjectLatest 2017
January
PSY-520 Graduate
Statistics
Topic 7 – MANOVA Project
Directions: Use the following information to complete the assignment.
While APA format is not required for the body of this assignment,
solid academic writing is expected, and documentation of sources
should be presented using APA formatting guidelines, which can be
found in the APA Style Guide, located in the Student Success Center.
A researcher randomly assigns 33 subjects to one of three groups.
Group 1 receives technical dietary information interactively from an
on-line website. Group 2 receives the same information from a nurse
practitioner, while Group 3 receives the information from a video tape
made by the same nurse practitioner.
The researcher looked at three different ratings of the presentation;
difficulty, usefulness, and importance to determine if there is a
difference in the modes of presentation. In particular, the researcher
is interested in whether the interactive website is superior because
that is the most cost-effective way of delivering the information.
Group
Usefulness
Difficulty
Importance
1
20
5
18
1
25
9
8
1
23
15
20
1
16
9
22
1
20
6
22
1
28
14
8
1
20
6
13
1
25
8
13
1
24
10
24
1
18
10
20
1
17
9
4
2
28
7
14
2
25
14
5
2
26
9
20
2
19
15
22
2
29
14
12
2
15
6
2
2
29
10
5
2
26
11
1
2
22
5
2
2
15
15
14
2
29
6
4
2
15
6
3
3
22
8
12
3
27
9
14
3
21
10
7
3
17
9
1
3
16
7
12
3
19
9
7
3
23
10
1
3
27
9
5
3
23
9
6
3
16
14
22
1. Run the appropriate analysis of the data and interpret
the results.
2. How could this study have been done differently? Why or
why not
would this approach be better?
GCU PSY520 week 8 Research Question Project
Latest 2017 January
Details:
In 1,250-1,500 words, answer the following questions about
possible research options.
Create
a research question in the field of psychology that you are interested in
researching. Write questions clearly. Include a brief background of the
problem you are proposing and why it is important to the field of
psychology.
State
the null and alternative hypothesis (in both words and statistical
notation) need to address the research question.
Choose
which statistical test would be used to conduct the study and support it
with research.
Describe
the type of data needs to be collected to conduct the study and what
techniques are best for collecting data.
Use three to five scholarly resources to support your explanations.
Prepare this assignment according to the guidelines found in the
APA Style Guide, located in the Student Success Center. An abstract is not
required.
This assignment uses a rubric. Please review the rubric prior to
beginning the assignment to become familiar with the expectations for
successful completion.
You are required to submit this assignment to Turnitin. Please
refer to the directions in the Student Success Center.
GC
PSY520 Week 8 Exercise Latest 2017 January
Details:
Complete the following exercises located at
the end of each chapter and put them into a Word document to be submitted as
directed by the instructor.
Show all relevant work; use the equation
editor in Microsoft Word when necessary.
1. Chapter
21, numbers 21.4, 21.7, 21.8, 21
