The data below are from an independent-measures experiment comparing three different treatment conditions.
a.Explain why an ANOVA should be used instead of a series of t tests to evaluate the mean differences among the three treatments.
b.Use an analysis of variance with α = .05 to determine whether these data indicate any significant mean differences among the treatments.
c.Compute η², the percentage of variance accounted for by the treatments.
Definitions:
Happy
A condition of happiness and satisfaction distinguished by feelings that vary between being content and experiencing profound happiness.
Ostracism
The social or psychological exclusion or rejection of an individual by a group, affecting the individual's behavior and mental health.
Excluded
Being intentionally left out or omitted from a group or an activity.
Grit
A psychological trait based on an individual's passion for a particular long-term goal coupled with a powerful motivation to achieve their respective objective.
Q1: What is the difference between discovery science
Q15: Which of the following accurately describes the
Q17: The F-ratio evaluating the significance of a
Q20: An independent-measures experiment with three treatment
Q25: What is indicated by a positive value
Q26: If the sample size is equal to
Q29: The following table shows the results
Q39: What happens to the shape of the
Q72: For a repeated-measures study,a small variance for
Q83: Effect size for analysis of variance