Unit 4 Homework Assignment

All work that can be done in SPSS must be submitted in that format. Submit only one file to the gradebook in Blackboard.

1. Dr. Allen suspects a strong correlation between math anxiety and performance in statistics. To test that hypothesis he collects the following data.

   Math Anxiety	1 st Exam Score
   78 68 82 56 23 22 34 20 53 65 30	42 58 38 75 82 85 49 86 54 53 84

   1. Conduct and interpret the appropriate analysis to determine if there is a relationship between math anxiety and performance in statistics (10 pts)
   2. Construct the appropriate graph to show the relationship between math anxiety and exam score (5 pts)
   3. If a student scores a 49 on the Math Anxiety test, what would be the predicted score on the first exam? (2.5 pts.)
   4. If a student scores an 85 on the Math Anxiety, what would be the predicted score on the first exam? (2.5 pts.)
2. A professor develops a scale that he believes measures spiritual maturity. To establish the reliability of his scale he administers the test to a group of students at 6 week intervals.

   Test	Retest
   45 68 51 78 48 80 78 70	35 75 52 60 75 72 85 78

   1. Is the test measuring a stable construct? Conduct and interpret the appropriate analysis to determine reliability of the test (15 pts.)
   2. Construct the appropriate graph to illustrate the data (5 pts.)
      3. A University Counseling Clinic is interested in predicting the levels of depression from the number of social events attended per week by a sample of their clients. The data are below:

      Social events per week	Depression Scores
      0 2 2 1 3 1 2 0 3 3 4 1 1 2	15 3 12 11 5 8 15 13 2 4 2 8 10 8

      1. Conduct and interpret the appropriate analysis to determine if there is a relationship between number of social events attended and depression scores (5 pts.)
      2. Create the appropriate graph to illustrate the relationship between these two variables. (5 pts.)
         b. What would you predict for a depression score for someone who attended 2 events per week? (2.5 pts)
      3. What would you predict for a depression score if someone attended 4 events per week?( 2.5 pts.)
         

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         4. Students in General Psychology were allowed to sign up for one of two sections of that course. One section has a virtual lab component to it, in which they are given additional assignments to supplement the lecture content. These exercises consist of various games, demonstrations etc., that the students complete utilizing the CD-ROM that comes with their textbook. The other section of the course is a regular lecture class, with no supplemental lab exercises

         No lab	Virtual Lab
         85 74 94 71 73 75 82 48 65 70 75 80	70 84 75 80 94 87 90 75 92 90

         
         a. Conduct and interpret the appropriate analysis to determine if the virtual lab group has significantly higher scores (10 pts).
         b. Construct the appropriate graph to illustrate the differences in the two groups (5 pts.)
   3. From the professor’s experience, he knows that students who score in the top 10% of the class are great candidates for lab assistants in the future. What score in the Virtual Lab group would indicate such a student (5 pts.)

5. The same students from the above scenario who are in the General Psychology class with the Virtual Lab exercises are asked to rate their opinion of the lab experiences.

1. Conduct and interpret the appropriate statistical analysis to determine if there is a relationship between their opinion of the lab and their final exam grade? (A high # reflects favorable opinion. (15 pts.)

b. Construct the appropriate graph to illustrate the relationship between the variables (5 pts.)

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Solution: The downloadable solution consists of 14 pages, 996 words and 17 charts.
Deliverable: Word Document