Exam 1

  1. Metainformation

    Tag Value
    fileDescriptive-statistics_uva-correlation-51-en_uva-correlation-51-en
    nameuva-correlation-51-en
    sectionDescriptive statistics/Summary Statistics/Bivariate statistics/Correlation
    typeschoice
    solutionTRUE, FALSE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2.544
    p-value0.4621

    Question

    In a study with two explanatory variables, the multiple correlation R2 = 0.80. A third explanatory variable is added. added. Then R2


    1. TRUE: Stay the same or get bigger.
    2. FALSE: Become smaller or larger.
    3. FALSE: Stay the same or get smaller.

    1. Stay the same or get bigger Correct
    2. Become smaller or larger: Incorrect
    3. Remain the same or become smaller: Incorrect