Week 4

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Psychology Quiz on Week 4, created by Katie Morbey on 19/05/2019.
Katie Morbey
Quiz by Katie Morbey, updated more than 1 year ago
Katie Morbey
Created by Katie Morbey over 5 years ago
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Resource summary

Question 1

Question
In a repeated-measures ANOVA, the within-participant variability is divided into two components. What are they?
Answer
  • Total variability and random variability
  • Variability between conditions and random variability
  • Variability between participants and random variability
  • Variability between conditions and total variability

Question 2

Question
Which of the following is an important advantage of a repeated-measures ANOVA design?
Answer
  • A different sample of participants serves in each condition, making it possible to compare different populations
  • Individual differences do not contribute to unsystematic variance
  • A large number of participants is generally required, which provides a better glimpse of the population
  • All of the above

Question 3

Question
A researcher reports an ANOVA as F (2, 40) = 5.18, p = .01. How many treatment conditions were compared in this experiment?
Answer
  • 4
  • 41
  • 2
  • 3

Question 4

Question
How many participants were there in the experiment reported in question 3?
Answer
  • 21
  • 41
  • 44
  • 63

Question 5

Question
Sphericity is an assumption in a repeated measures ANOVA. How is sphericity calculated?
Answer
  • By looking at the difference between the first and the last condition
  • By looking at the size of the differences between conditions
  • By looking at variability in difference scores between conditions
  • By looking at the variability within each condition

Question 6

Question
Which of the following statements about the assumption of sphericity is NOT true?
Answer
  • It is the repeated measures equivalent of homogeneity of variances
  • It is tested using Levene's test in SPSS
  • It is automatically met when an independent variable has only two levels
  • It is tested using Mauchley's test in SPSS

Question 7

Question
If the assumption of sphericity is broken, which correction is available in SPSS?
Answer
  • Levene
  • Mauchly
  • Kolmogorov-Smirnov
  • Greenhouse-Geisser

Question 8

Question
The larger the F statistic in a repeated-measures ANOVA, the larger the _____________ compared to the _________
Answer
  • Variation between conditions; random variation
  • Variation within individuals; variation between individuals
  • Variation between individuals; variation within individuals
  • Random variation; variation between conditions
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