Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_vufgb-cohensd-001-en_vufgb-cohensd-001-en
    namevufgb-cohensd-001-en
    sectionInferential Statistics/Effect size/Cohen's d, Inferential Statistics/Effect size
    typeschoice
    solutionTRUE, FALSE, FALSE, FALSE
    TypeCalculation, Interpreting output
    Program
    LanguageEnglish
    LevelStatistical Thinking

    Question

    An experiment measures reaction times while cycling when using a cell phone (yes/no). Subjects (N = 32) performed the task in both conditions. The mean reaction times were 534.6 milliseconds (SD = 66.45) without phone, and 585.2 milliseconds (SD = 89.65) with phone. The mean difference was 50.63 (SD = 52.49), t(31) = 5.46, p<.001p < .001.

    What is the corresponding effect size?


    1. TRUE: D = 0.96
    2. FALSE: D = 0.59
    3. FALSE: D = 0.46
    4. FALSE: D = 0.65

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