PSY520 All Assignments Latest 2018 November (Except Week 8 Assignment)

PSY520 Graduate Statistics

Week 1 Assignment

Use the attached document “Descriptive Statistic 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 1 – Descriptive Statistics 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.

A researcher was interested in the anxiety present in students just prior to the midterm exam. The research used an anxiety self-quiz to gage the student’s anxiety. The score for 30 students are given here.

69 99 91 66 70 98 70 53 40 58

61 66 94 77 70 56 88 85 86 40

84 86 54 48 86 43 78 53 79 89

1. Construct a frequency table with class, frequency, relative percent, and cumulative percent that has 6 classes to describe the distribution of the data in SPSS.

2. Use the frequency table created in problem to construct a histogram in SPSS.

3. Use SPSS to calculate the numerical descriptive statistics mean, median, standard deviation, and variance of the anxiety scores.

PSY520 Graduate Statistics

Week 3 Assignment

Probability Project

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.

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.

PSY520 Graduate Statistics

Week 5 Assignment

Benchmark – Correlation and Regression

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.

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.

PSY520 Graduate Statistics

Week 7 Assignment

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?