Week 1

Beschreibung

Psychology Quiz am Week 1, erstellt von Katie Morbey am 19/05/2019.
Katie Morbey
Quiz von Katie Morbey, aktualisiert more than 1 year ago
Katie Morbey
Erstellt von Katie Morbey vor mehr als 5 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
Why should you use an ANOVA, rather than lots of t tests?
Antworten
  • Performing lots of t test increases the probability of making a Type 1 error
  • Performing lots of t tests increases the probability of making a Type 2 error
  • Performing lots of t tests increases the chance of failing to reject a false null hypothesis
  • All of the above

Frage 2

Frage
The ANOVA statistic is calculated by __________
Antworten
  • Multiplying the between groups variance by the within groups variance
  • Subtracting the between groups variance from the within groups variance
  • Adding the between groups variance to the within groups variance
  • Dividing the between groups variance by the within groups variance

Frage 3

Frage
You calculate an F ratio and get a value more than 1. How would you interpret this?
Antworten
  • There is the less between groups variance than within groups variance
  • There is the same amount of between groups variance and within groups variance
  • There is no within groups variance
  • There is more between groups variance than within groups variance

Frage 4

Frage
You have calculated the SSbetween as 10 and the SStotal as 15. What would the SSwithin be?
Antworten
  • 25
  • 0.067
  • -5
  • 5

Frage 5

Frage
Your study has four conditions with 20 participants in each condition. What would the dfwithin be?
Antworten
  • 77
  • 76
  • 79
  • 80

Frage 6

Frage
Which of the following is the correct way to calculate the MSbetween?
Antworten
  • SSbetween ÷ dfbetween
  • SSbetween ÷ SStotal
  • SSbetween x dfbetween
  • SSbetween x dftotal

Frage 7

Frage
What does eta squared tell us?
Antworten
  • If homogeneity has been established
  • If there is a significant difference between groups
  • How much of the variance in the independent variable can be accounted for by the dependent variable
  • How much of the variance in the dependent variable can be accounted for by the independent variable

Frage 8

Frage
If an author reports the results of an ANOVA as F (4, 65) = 9.56, p = .01, what is the between-groups degrees of freedom?
Antworten
  • 5
  • 65
  • 9.56
  • 4
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