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Quiz

Week 5

Gelöschter Nutzer 8 Fragen Aktualisiert am 19 Mai 2019

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Fragen in diesem Quiz (8)

  1. 1What assumption does ANCOVA have that ANOVA does not?
    1. AHomogeneity of variance
    2. BAll assumptions of ANCOVA can be applied to ANOVA
    3. CHomogeneity of regression slopes
    4. DAssumptions of normality
  2. 2ANCOVA is __________
    1. AA robust version of ANOVA
    2. BAn extension of ANOVA that partials out the effect of other measured variables
    3. CA method of portioning the results of ANOVAs to investigate where differences between independent variables lie
    4. DUsed to correct for unmeasured variables that could affect the outcome variable
  3. 3A researcher conducted a study to examine whether people’s attachment styles are associated with differences in relationship satisfaction. Participants were divided into three groups according to their attachment styles (secure, dismissing, and fearful) and their relationship satisfaction was measured. Depression levels were also measured, as it is known that relationship satisfaction covaries with depression. Which variable should the researcher use as a covariate in the data analysis?
    1. ADepression
    2. BRelationship satisfaction
    3. CAttachment style
    4. DSecure attachment
  4. 4Regarding the study described in Question 3, which of the below questions would be relevant to the data analysis?
    1. AWhat would the mean depression score be for the three groups of attachment styles if their levels of relationship satisfaction were constant?
    2. BWhat would the mean relationship satisfaction be if levels of depression were constant?
    3. CDoes relationship satisfaction have a significant effect on the relationship between attachment and depression?
    4. DWhat would the means of the groups be on relationship satisfaction if their levels of depression were constant?
  5. 5What problem do you foresee with the study described in Question 3?
    1. ADepression might also be related to attachment style
    2. BIt is likely that the regression lines will be parallel
    3. CThere could be more than three groups
    4. DIt is likely that there will be a linear association between depression and relationship satisfaction
  6. 6The larger the F statistic, the larger the _____________ compared to the _________
    1. AVariation between groups; total variation
    2. BVariation between groups; variation within groups
    3. CTotal variation; variation between groups
    4. DVariation within groups; variation between groups
  7. 7A covariate is best described as _________
    1. AA variable that is related to the independent variable
    2. BA variable that is directly influenced by the dependent variable
    3. CA variable that is unrelated to all other variables in the study
    4. DA variable that is related to the dependent variable
  8. 8A researcher wanted to see whether giving students caffeine would improve their memory. He gave all students a memory test, then he randomly assigned participants to two groups. One group received a caffeinated drink and the other group received a decaffeinated drink. Both groups then took another memory test (with different questions). The researcher used ANCOVA to analyse the data. Which variable was the covariate?
    1. AScore on the second memory test
    2. BCaffeine
    3. CThere was no covariate
    4. DScore on the first memory test

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Beschreibung
Der Nutzer hat seine Fachbereichs-Information gelöscht. Quiz am Week 5, erstellt von Gelöschter Nutzer am 19/05/2019.
Autor
Gelöschter Nutzer
Sprache
English
Aufrufe
20
Verlauf
Erstellt am 19 Mai 2019 · aktualisiert am 19 Mai 2019

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