PSYCH 625 Week 3 Individual Assignment Time to Practice – Week Three
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Complete both Part A and Part B below.
Part A
Some questions in Part A require that you access data from Statistics for People Who (Think They) Hate Statistics. This data is available on the student website under the Student Test Resources link.
1. For the following research questions, create one null hypothesis, one directional research hypothesis, and one nondirectional research hypothesis
What are the effects of attention on outofseat classroom behavior
What is the relationship between the quality of a marriage and the quality of the spouses’ relationships with their siblings
What is the best way to treat an eating disorder
2. Provide one research hypothesis and an equation for each of the following topics
The amount of money spent on food among undergraduate students and undergraduate studentathletes
The average amount of time taken by white and brown rats to get out of a maze
The effects of Drug A and Drug B on a disease
The time to complete a task in Method 1 and Method 2
3. Why does the null hypothesis presume no relationship between variables
4. Create a research hypothesis tested using a onetailed test and a research hypothesis tested using a twotailed test
5. What does the critical value represent
6. Given the following information, would your decision be to reject or fail to reject the null hypothesis? Setting the level of significance at .05 for decision making, provide an explanation for your conclusion
The null hypothesis that there is no relationship between the type of music a person listens to and his crime rate (p < .05)
The null hypothesis that there is no relationship between the amount of coffee consumption and GPA (p = .62)
The null hypothesis that there is a negative relationship between the number of hours worked and level of job satisfaction (p = .51)
7. Why is it harder to find a significant outcome (all other things being equal) when the research hypothesis is being tested at the .01 rather than the .05 level of significance
8. Why should we think in terms of “failing to reject” the null rather than just accepting it
9. When is it appropriate to use the onesample z test
10. What similarity does a z test have to a simple z or standard score
11. For the following situations, write out a research hypothesis
Bob wants to know if the weight loss for his group on the chocolateonly diet is representative of weight loss in a large population of middleaged men
The health department is charged with finding out if the rate of flu per thousand citizens for this past flu season is comparable to the average rate of the past 50 seasons
Blair is almost sure that his monthly costs for the past year are not representative of his average monthly costs over the past 20 years
12. There were about 15 flu cases per week, this flu season, in the Oshkosh school system. The weekly average for the entire state is 16 and the standard deviation, is 2.35. Are the kids in Oshkosh as sick as the kids throughout the state
Part B
Complete the following questions. Be specific and provide examples when relevant.
Cite any sources consistent with APA guidelines
The average raw math achievement score for third graders at a Smith elementary school is 137; third graders statewide score an average of 124 with a standard deviation of 7. Are the Smith third graders better at math than third graders throughout the state? Perform the correct statistical test, applying the eight steps of the hypothesis testing process as demonstrated on pp. 185–187 of Statistics for People Who (Think they) Hate Statistics
What is a research question that you would like to answer? Write the null and research hypotheses. Would you use a one or twotailed test? Why
What do we mean when we say that a statistical result is significant? What is the difference between a statistically significant and a meaningful result? Why is statistical significance important
Describe a Type I error for the previous study that compares third graders’ math achievement. Describe a Type II error for that study
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Complete Parts A, B, and C below.
Part A
Some questions in Part A require that you access data from Statistics for People Who (Think They) Hate Statistics. This data is available on the student website under the Student Text Resources link.
1. Use the following dat..

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Complete Parts A, B, and C below.
Part A
Some questions in Part A require that you access data from Statistics for People Who (Think They) Hate Statistics. This data is available on the student website under the Student Text Resources link.
1. Using the data in the..

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PSYCH 625 Week 3 Learning Team Assignment Statistics Project Descriptive Statistics
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Research in the University Library to find five empirical (those containing data) research articles. Select articles that are of interest to you and include the citations at the end of this document. Place the information for each one in the following tables:
Title of Article:
Questi..

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Complete both Part A and Part B below.
Part A
Some questions in Part A require that you access data from Statistics for People Who (Think They) Hate Statistics. This data is available on the student website under the Student Test Resources link.
1. For the followin..

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PSYCH 625 Week 2 Learning Team Assignment Statistics Project Import Data Into IBM ® SPSS ® Software
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Complete Parts A, B, and C below.
Part A
Some questions in Part A require that you access data from Statistics for People Who (Think They) Hate Statistics. This data is available on the student website under the Student Text Resources link.
1. Why is a z ..

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Part A
Some questions in Part A require that you access data from Statistics for People Who (Think They) Hate Statistics. This data is available on the student website under the Student Test Resources link.
1. By hand, compute the mean, median, and mode for the following se..

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For each of the tests of reliability and validity listed on the matrix, prepare a 50 to 100word description of the test’s application. Describe what conditions these reliability types would be used for as well as when they would be inappropriate. Then, for each test, prepare a 50 to 100word d..

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Complete the following questions. Be specific and provide examples when relevant.
Cite any sources consistent with APA guidelines.
What are statistics and how are they used in the behavioral sciences? Your answer should be 100 to 200 words.
Differentiate between descriptive ..

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DQ 1: We have looked at a number of important statistical concepts over the past few weeks and there is value in considering how some of those concepts are employed to drive decisions that impact all of us and our families.
..

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DQ 1: Thomas Bayes who was an English Clergyman in the early 18th century who is known for the Bayes' Theorem. The theorem suggests that science is about conducting research in order to adjust our preexisting beliefs in light of the evidence collected. Conclusions drawn from an e..

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WEEK 4:
DQ 1: What is a research question each of you would like to research?
What are independent and dependent variables?
What would your hypothesis be?
&nb..

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DQ 1: Please read the following article in your Electronic Readings, Null Hypothesis,
CLOSED THINKING: Without scientific competition and open debate, much psychology research goes nowhere
DQ 2: It is suggested that significance tests should be banned for two reason..

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DQ 1: More and more, we are asked to document impact and to measure outcomes. We are asked to provide information about a variety of things through as many varieties of ways. When we go to stores and they ask us for a zip code or phone number. The list could go on and on. ..

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DQ 1: As we begin our venture into statistics, let's pause to examine the role of research in psychology. Psychology is the science of behavior. We think of psychology as counseling, introspection, learning, cognition, etc. How can these processes be the subject of research? How do we reconcile t..
