A researcher would like to evaluate the effect of a new reading program for second-grade students. She has half of the second-grade students use the new reading program for the first half of the school year and use the current reading program for the second half of the year. The other half of the second-grade students use the current reading program for the first half of the school year and use the new reading program for the second half of the year. The researcher plans to use the data from this study to test whether the new program has had a significant effect on reading scores. Which of the following hypothesis tests would be appropriate?
A repeated-measures ANOVA produced an F-ratio of F = 4.00 wi…
A repeated-measures ANOVA produced an F-ratio of F = 4.00 with df = 1, 14. If the same data were analyzed with a repeated-measures t test, what value would be obtained for the t statistic?
A 99% confidence interval for the population mean ranges fro…
A 99% confidence interval for the population mean ranges from 46 to 50. Based on this information:
A researcher obtains t(20) = 2.00 and MD = 9 for a repeated-…
A researcher obtains t(20) = 2.00 and MD = 9 for a repeated-measures study. If the researcher measures effect size using the percentage of variance accounted for, what value will be obtained for r2?
What is an example of a nominal variable?
What is an example of a nominal variable?
The normal distribution is an example of ____.
The normal distribution is an example of ____.
A two-factor experiment with 6 levels of factor A and 8 leve…
A two-factor experiment with 6 levels of factor A and 8 levels of factor B would consist of ____ separate treatment conditions and the dfFactor B would be ____.
In general, what is the effect of an increase in the varianc…
In general, what is the effect of an increase in the variance for the sample of difference scores?
What is the critical value for a correlation with n=32, two-…
What is the critical value for a correlation with n=32, two-tailed, and an alpha level of 0.01?
A set of n = 65 pairs of scores (X and Yvalues) produces a r…
A set of n = 65 pairs of scores (X and Yvalues) produces a regression equation of Ŷ = 8X + 17. Find the predicted Y value for an X score of -10.