gcu psy520 week 4-5 assignments

Question # 00727941 Posted By: mac123 Updated on: 06/18/2019 04:45 PM Due on: 06/18/2019
Subject Psychology Topic Abnormal Psychology Tutorials:
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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.

 

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.
    1. Specify how you will measure each of these variables (i.e., what instrument will you use and provide an APA reference for the instrument)
  2. Collect the data for these variables and describe the data collection technique and why it was appropriate as well as why the sample size was best.
    1. 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 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. Identify the predictor variables and the criterion variable.
  5. Provide an output of the SPSS results and interpret the results using correct APA style.

 

This benchmark assignment assesses the following programmatic competencies: 3.1: Interpret psychological phenomena using scientific reasoning

 

 

Topic 5 Exercises

 

 

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

     

    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

     

  3. Run the appropriate analysis of the data and interpret the results.
  4. How could this study have been done differently? Why or why not would this approach be better?
  5.  

  6. Chapter 15, numbers 15.7, 15.8, 15.10 and 15.14
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