Exam 1

  1. Metainformation

    Tag Value
    fileAssumptions_vufgb-homoscedasticity-001-en_vufgb-homoscedasticity-001-en
    namevufgb-homoscedasticity-001-en
    sectionAssumptions/Homoscedasticity, Assumptions, Descriptive statistics/Data representation/Graphs/Scatterplot
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeInterpreting graph
    Program
    LanguageEnglish
    LevelStatistical Literacy

    Question

    A researcher performs a linear regression. First, he checks whether the assumptions of the linear regression model are met. He sees the following picture of residual scores.

    What assumption has been violated here?


    1. FALSE: Random drawing.
    2. TRUE: Homoscedasticity.
    3. FALSE: Linear relationship between x and y.
    4. FALSE: Conditional distribution of y is normally distributed.

    1. Incorrect
    2. Correct
    3. Incorrect
    4. Incorrect