Exam 1

  1. Metainformation

    Tag Value
    fileDescriptive-statistics_eur-descriptive-407-en_eur-descriptive-407-en
    nameeur-descriptive-407-en
    sectionDescriptive statistics
    typenum
    solution9
    tolerance0
    TypeData manipulation
    ProgramSPSS
    LanguageEnglish
    LevelStatistical Literacy

    Question

    A knowledge test on alcohol contains 20 items and is administered to 202 high school students. The variable [total score] gives the total correct scores. Gender (0 = woman; 1 = man) and alcohol use (0 = very often; 1 = often; 2 = sometimes; 3 = never) are also included in the dataset.

    Convert the total score of each student to a normalized score (rankit) with a mean of 10 and a standard deviation of 5. Round the normalized score. What is the normalized total score of the student with id=31? (no decimals)

    Open the dataset below to answer this question:

    Download SPSS file, CSV file


    Solution

    The normalized score of the student with id=31 is 9 (normalize the scores using rank cases and then transform the scores so the new variable has a mean of 10 and a standard deviation of 5).