Time left 1:10:54 A language learning app advertises that their 8-week program can increase fluency in a foreign language by 10%. Considering that the average fluency level in the general population is 50%, with a standard deviation of 5%, the magnitude of the claimed effect is: a. Large. b. Medium. c. Small. d. Negligible. Time left 1:10:47 A researcher conducted an ANOVA analysis to compare the effects of three different dietary supplements to increase weight (placebo, method B, and method C). The obtained F value was not statistically significant (p = .08). The researcher then decided to conduct a follow-up study using e higher dosages of the dietary supplements (Placebo, method B+, and method C+). Based on the trend observed in the initial study, it would be reasonable to anticipate: a. Lower Fand p values. A lower F value and a higher p value. c. A higher Fvalue and a lower p value. d. Higher Fand p values. Time left 1:10:35 Which one of the following leads to an increase in the power of the one-way between-subjects ANOVA? of A decrease in Type | error rate. A decrease in the sample size of the groups. An increase in differences between means. An increase in the variability within groups. Time left 1:10:28 Upon obtaining a significant overall Ftest result, which of the following factors affects the choice of post-hoc comparison of means? The size of the effect. b. The overall sample size. c. The number of means to be compared The number of participants within each group. Time left 1:10:23 After obtaining a significant F test result in an ANOVA analysis comparing the effectiveness of three teaching methods on student learning outcomes, which post-hoc test would be appropriate for comparing the mean scores among the teaching methods, aiming for the most powerful test Jt of while controlling for Type 1error? a. The Dunnett's test. b. The Sidak test. c. The Fisher's Least Significant Difference (LSD) test. d. The Student-Newman-Keul test Time left 1:10:16 If we only had data on the mean weekly gambling expenditure by Catholics and Protestants, which test would be appropriate to compare the group means? t of O a. The t-test O b. The Scheffe test. O c. The Student-Newman-Keul test. O d. The Tukey test.Time left 1:10:11 A 4 x 3 ANOVA has: a. 12 levels. b. 7levels. c. Two factors one with 4 and one with 3 levels. Two levels each with 4 and 3 factors respectively. Time left 1:10:06 When comparing all pairwise differences between three means, which of the following tests does not effectively control for the inflation of the Type 1 error rate? ut of O a. The Holm-Bonferroni test. O b. The Tukey test. O c. The Dunnett's test. O d. The t-test.Time left 1:10:02 8 When comparing a two-way factorial ANOVA to a series of one-way tests, the key advantage is that it incorporates: d out of a. More powerful tests for each factor by removing the influence of the other factor. b. All possible comparisons between means. i c. More powerful tests for each factor due to larger sample sizes. d. A test for the interaction between the two factors