PSYC 308 - TESTS and MEASUREMENTS LAB
CHAPTER 5 EXERCISE
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| EMAIL ME | | GERONTOLOGY | | PSYC DEPT | | NEIU LIBRARY |
  1. Preliminary work

    2. Enter data from Box 1 (pg. 134)
     

  2. Exercise One  -  Do the following for each test :

    3.  
    1. Create new variable to group data
    2. Do Frequencies: Raw scores and Grouped scores
    3. Do Descriptives: Raw scores and Grouped scores.  Get Z-scores.
    4. Create histogram, bar graph, box & whisker, error bars: Raw scores and Grouped scores
    5. Create appropriate tables & graphs
    6. Type a narrative summary of each test and of a comparison of the tests.

      7.  
  3.  Using same test data:

    4.  
    1. Do correlations between Test 1 & Test 3 and between Test 2 & Test 4: Raw scores and Grouped scores
    2. Create formula for regression of Test 3 on Test 1 (Raw Scores)
    3. Create formula for regression of Test 1 on Test 3 (Raw Scores)
    4. Use equation from # 3 and create a column of predicted scores for Test 3
    5. Use equation from # 4 and create a column of predicted scores for Test 1
    6. Use the standard errors of estimate to create 95% confidence limits for both sets of predictions.
    7. Write a summary of your results. Talk about:

      8.  
      1. Significance of the correlations
      2. Interpretation of Coefficient of Determination
      3. Differences between regression equations

        4.  
  4. Using same test data:

    5.  
    1. Compute T scores for all four tests
    2. Do Descriptives on all T scores
    3. Do histogram of T scores on all four tests
    4. Compute Percentile Ranks on all Raw Scores:  Use frequencies
    5. Compute Stanine Scores on all Raw Scores
    6. Do correlations between:

      7.  
      1. Raw Scores & Percentiles
      2. Raw Scores & Stanines

        3.  
    1. Use WordPerfect to produce a Table for each test which contains:

      2.  
      1. Subject #
      2. Raw Score
      3. T Score
      4. Percentile Rank
      5. Stanine Score

        6.  
    2. Prepare narrative explaining the relationship among the scores and what each is useful for.


      3.