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• PSY 325 Entire Course

• PSY 325 Week 1 Assignment Final Paper Topic
  Proposal

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• Final Paper Topic Proposal. For the Final Paper,
  you will identify three to five research studies
  from peer-reviewed sources that were published
  within the last ten years, which investigate a
  particular social science problem or topic. The
  Final Paper will focus on critiquing the varying
  statistical approaches used in each of these
  studies.

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• PSY 325 Week 1 Assignment Final Paper Topic
  Proposal
• PSY 325 Week 1 DQ 1 Types of Data
• PSY 325 Week 1 DQ 2 Measures of Variability and
  Central Tendency

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• PSY 325 Week 1 DQ 1 Types of Data

• PSY 325 Week 1 DQ 2 Measures of Variability and
  Central Tendency

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• Types of Data. Give an example of a research
  question that includes an independent and a
  dependent variable. These are usually presented
  as, "How does A affect B?", where A is your
  independent variable and B is your dependent
  variable. Describe the independent and dependent
  variables in terms of whether they are nominal
  (also called categorical), ordinal, interval, or
  ratio variables (interval or ratio variables are
  also called continuous variables). How would you
  study this research question?

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• Measures of Central Tendency. For this
  discussion, come up with 20 different data points
  (set of data) and enter them into the first
  column in an Excel spreadsheet. The data points
  can be any numbers you want as long as there are
  20 of them. Your set of data should reflect one
  of the following criteria
• Create a set of data for which the mean is
  greater than the median.

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• PSY 325 Week 2 Assignment Article Summary

• PSY 325 Week 2 DQ 1 Graphs

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• Article Summary. For your Final Paper you will
  identify three to five quantitative research
  studies from peer-reviewed sources which were
  published within the last ten years and that
  investigate a particular social science problem
  or topic. The Final Paper will focus on
  critiquing the varying statistical approaches
  used in each of these studies and assess the
  strengths and weaknesses of each as it relates to
  the study of the problem or topic identified.

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• Graphs. Give one example of health-related data
  (a variable) that can be represented by a pie
  chart. Do the same for a bar chart and a
  histogram. Explain why each data example you
  selected (there will be a total of three
  different variables) is well represented by the
  corresponding graph

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• PSY 325 Week 2 DQ 2 Standard Normal Distribution

• PSY 325 Week 3 Assignment Final Paper Outline

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• Standard Normal Distribution. Review Chapter 3 of
  your course text, which introduces probability
  and the standard normal distribution. When
  comparing data from different distributions, what
  is the benefit of transforming data from these
  distributions to conform to the standard
  distribution? What role do z-scores play in this
  transformation of data from multiple
  distributions to the standard normal
  distribution? What is the relationship between
  z-scores and percentages? In your opinion, does
  one do a better job of representing the
  proportion of the area under the standard curve?
  Give an example that illustrates your answer.

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• Final Paper Outline. This week, your assignment
  is to prepare an outline for the Final Paper that
  is due next week. Review the Final Paper
  requirements, which are located in Week Five of
  your course or in the Components of Course
  Evaluation section of this guide.

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• PSY 325 Week 3 DQ 1 Choose the Analysis

• PSY 325 Week 3 DQ 2 Repeated Measures

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• Choose the Analysis. A researcher wishes to study
  the effect of a new drug on blood pressure. Would
  you recommend using a z-test, a t-test, or an
  A.N.O.V.A. for the analysis? Explain your answer.
  What would your choice of test depend on? For the
  test you select, explain your design and your
  comparison groups. Would the hypothesis be
  directional or non-directional? Would the test be
  one-tailed or two-tailed? What would be the null
  and what would be the alternative hypothesis?

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• Repeated Measures. Review Chapter 7 of your
  course text, which reviews inferential statistics
  that analyze experiments of repeated measures
  designs. For this discussion, search the
  University Library and find a scholarly,
  peer-reviewed study on any behavioral or social
  sciences topic that used a repeated measures
  design. Reference the study and summarize the
  research question, the subjects, and the
  variable(s) of interest. What statistical
  analysis was used and what were the results? Were
  there any statistically significant differences?
  What does it mean for the results to be
  statistically significant? What does this mean
  specifically for the differences assessed in this
  study? Cite your study using APA format as
  outlined in the Writing Center.

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• PSY 325 Week 4 DQ 1 Correlation

• PSY 325 Week 4 DQ 2 Regression

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• Correlation. Much has been written about the
  relationship between a students S.A.T. test
  scores and their familys income. Generally
  speaking, there is a strong positive correlation
  between income and S.A.T. scores. What might this
  tell you? Is this evidence that having a high
  family income causes one to have high S.A.T.
  scores? Is this evidence that high S.A.T. scores
  are a cause of high income? Or, does this tell
  you something else? If something else, what? In
  the course of your response, explain why
  correlation alone is rarely sufficient to
  demonstrate cause.

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• Regression. Explain the relationship between
  correlation and regression. What do the two
  approaches have in common, and how are they
  different? In what types of research might one
  approach be preferred over the other? Explain and
  justify your response. Be sure that your
  discussion refers to both predictor and criterion
  variables as well as their role in the regression
  equation.

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• PSY 325 Week 5 DQ 1 Chi-Square Goodness-of-Fit
  Test

• PSY 325 Week 5 DQ 2 Chi-Square Test of
  Independence

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• Chi-Square Goodness-of-Fit Test. Describe the
  chi-square goodness-of-fit test. Provide a
  detailed explanation of what this test measures,
  and how it is similar to and different from the
  independent t-test. How do you know when to use
  one analysis over the other? Provide a real-world
  example.

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• Chi-Square Test of Independence. Describe the
  chi-square test of independence. Give an example
  of a question that could be answered using this
  test. If you were to assemble a contingency
  table, what would be included in your rows and
  columns? Pick a cell of this contingency table
  and explain what the value in the cell would
  represent (you do not need to give the value,
  just explain what it would represent)? What
  hypothesis would be tested? What do you think the
  answer would be? Why?

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• PSY 325 Week 5 Final Paper

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• Focus of the Final Paper
• For your Final Paper you will conduct a research
  study critique. Utilize the instructor-approved
  topic that you selected in Week One of the
  course. Identify three to five quantitative
  research studies from peer-reviewed sources which
  were published within the last ten years that
  investigate this topic. Describe the statistical
  approaches (i.e., identify the variables and
  their type) used in each study and the
  interpretation of the results.

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