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A researcher obtains a Pearson correlation of r = .43 for a sample of n = 20 participants.  For a two-tailed test, which of the following accurately describes the significance of the correlation?

For an independent-measures research study, the data show a 2-point difference between the two treatment means and a pooled variance of 100. Given this information, the value of Cohen’s d is:

A researcher is conducting a chi-square test for independence to evaluate the relationship between gender and preference for three different designs for a new automobile.  Each individual in a sample of 30 males and 30 females selects a favorite design from the three choices. If the researcher obtains a chi-square statistic of c2 = 4.81, what is the appropriate statistical decision for the test?

What is referred to by the term observed frequencies?

calculate X if z = 1.5, µ = 70 and standard deviation = 5

How does the difference between fe and fo influence the outcome of a chi-square test?

The following data were obtained from a repeated-measures research study. What is the value of MD for these data?Subject            1st       2nd   #1                  8          15   #2                  6          10   #3                10            5   #4                  9          17   #5                  7          13

If all other elements are held constant, how does the denominator of the F-ratio for a factorial ANOVA compare to the denominator for a repeated measures ANOVA?

An advertising company would like to know which of three popular TV shows puts people in the best mood. Participants are randomly assigned to watch one of three TV shows and then completed a questionnaire that assesses mood. The TV shows and mood scores are 30 Rock (M = 18), The Office (M = 24), and Family Guy (M = 20). Higher scores indicate better moods. The ANOVA results are F(2, 149) = 3.42, p < .01. Based on these results, which conclusion is true?

Which of the following is not an appropriate independent variable for linear regression or Pearson’s correlation?