PSYCH 625 Week 1 Individual Assignment Time to Practice – Week One
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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 set of 40 reading scores
2. Compute the means for the following set of scores saved as Ch. 2 Data Set 3 using IBM® SPSS® Print out a copy of the output.
3. You are the manager of a fast food store. Part of your job is to report which special is selling best to the boss at the end of each day. Use your knowledge of descriptive statistics and write one paragraph to let the boss know what happened today. Use the following data. Do not use IBM® SPSS® software to compute the statistics needed; rather, do it by hand. Include a copy of your work
4. Suppose you are working with a data set that has some different (much larger or much smaller than the rest of the data) scores. What measure of central tendency would you use and why
5. For the following set of scores, compute the range, the unbiased and the biased standard deviations, and the variance. Do the exercise by hand
6. Use IBM® SPSS® software to compute all the descriptive statistics for the following set of three test scores over the course of a semester. Which test had the highest average score? Which test had the smallest amount of variability
7. This practice problem uses the data contained in the file named Ch. 3 Data Set 3. There are two variables in this data set
8. Review the following frequency distribution. Create a histogram either by hand or by using some other application such as a Microsoft® Excel® document
9. A thirdgrade teacher is looking to improve her students’ level of engagement during group discussions and instruction. She keeps track of each of the 15 third graders’ number of responses every day for 1 week. This information is available in Ch. 4 Data Set 2. Use IBM® SPSS® software to create a bar chart (one bar for each day).
10. Identify whether these distributions are negatively skewed, positively skewed, or not skewed at all, and why
11. For each of the following, indicate whether you would use a pie, line, or bar chart, and why
Part B
Complete the questions below. Be specific and provide examples when relevant.
Cite any sources consistent with APA guidelines
Salkind (2011) describes statistics as a “set of tools” (p. 18). How do behavioral scientists use those tools
How would you use descriptive statistics to report the effectiveness of a baseball team? How would you use inferential statistics to report the effectiveness of a baseball team? In this example, what is the sample and what is the population
What does a measure of central tendency tell us about a data set? Identify the three common measures of central tendency used in descriptive statistics and give an example of each. How do you calculate them
What is variability in a data set? Identify three measures of variability used in descriptive statistics, explain how to calculate each, and give an example of each
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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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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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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 ..

This Tutorial was purchased 10 times & rated A by student like you.
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:
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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..
