This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Research Stats > Analysis Of Variance – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Analysis Of Variance Quiz 1 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. As variability due to chance decreases, the value of F will A) Decrease. B) Stay the same. C) Increase. D) Can't tell from the given information. Show Answer Correct Answer: C) Increase. 2. The ANOVA procedure is a statistical approach for determining whether or not A) The means of two or more samples are equal. B) The means of two or more populations are equal. C) The means of two samples are equal. D) The means of more than two samples are equal. Show Answer Correct Answer: B) The means of two or more populations are equal. 3. In order to conduct the Scheffe' test, one must compare the means two at a time using all possible combinations of means. A) True. B) False, this only applies to the Tukey test. C) False, the Scheffe' test compares means three at a time using all possible combinations. D) False, the Scheffe' test does not make comparisons of any kind. Show Answer Correct Answer: A) True. 4. Using your F table, what is the critical value for a set of sample data that has a df between of 3 and a df within of 10? A) 5.41. B) 3.71. C) 3.86. D) 6.61. Show Answer Correct Answer: B) 3.71. 5. In two-way ANOVA, a significant interaction tells us that A) At least one independent variable is statistically significant. B) At least two main effects are present in the study design. C) The pattern observed for one independent variable differs by the second independent variable. D) The effects of each variable in the study design are parallel. Show Answer Correct Answer: C) The pattern observed for one independent variable differs by the second independent variable. 6. A test that is designed to compare two separate groups of data. A) One way ANOVA. B) Mixed ANOVA. C) Independent samples t-test. D) Paired samples t-test. Show Answer Correct Answer: C) Independent samples t-test. 7. In a one-way ANOVA, which of the following statements is correct? A) There are multiple interactions. B) An interaction can be tested. C) There is no interaction. D) An interaction is present. Show Answer Correct Answer: C) There is no interaction. 8. In a one-way ANOVA, how many degrees of freedom exist for the F-test? (k represents the number of groups) A) (Nk-1) and (N-1). B) (k-1) and (N-k). C) (N-1) and (N-k). D) (k-N) and (N-k). Show Answer Correct Answer: B) (k-1) and (N-k). 9. Analysis of Variance also called as ..... A) VARIANCE. B) FISHER. C) ANOVA. D) None of above. Show Answer Correct Answer: C) ANOVA. 10. Which of the following distributions is used to compare two variances? A) F-Distribution. B) Normal Distribution. C) Poisson Distribution. D) T-Distribution. Show Answer Correct Answer: A) F-Distribution. 11. Two-way and more complex ANOVAs are used only when: A) There is exactly one independent variable in the study design. B) There are at least three independent variables in the design. C) We have two independent variables and two dependent variables in the study design. D) There is more than one independent variable in the study design. Show Answer Correct Answer: D) There is more than one independent variable in the study design. 12. Which is the correct order of steps for calculating and interpreting a one-way ANOVA? A) Determine SS, Calculate df, Calculate MS, Calculate F, Compare F obtained to F critical. B) Calculate F, determine SSS, Calculate df, Compare F obtained to F critical. C) Find F and compare. D) Calculate T, calculate df, compare T obtained to T criitical. Show Answer Correct Answer: A) Determine SS, Calculate df, Calculate MS, Calculate F, Compare F obtained to F critical. 13. What is the key difference between one-way ANOVA and a t-test? A) You can have more than 2 groups in ANOVA. B) They are the same test just with different calculations. C) T-tests split variance into within and between. D) ANOVA is about the mean and t-test is about the variance. Show Answer Correct Answer: A) You can have more than 2 groups in ANOVA. 14. ANOVA tests use which of the following distributions? A) T. B) F. C) Z. D) Chi-square. Show Answer Correct Answer: B) F. 15. Only the Scheffe' test can be used after the analysis of variance has been completed to make pairwise comparisons between means when groups have the same sample size. A) True. B) False, only the Tukey test can be used. C) False, both the Tuley and Scheffe' test can be used. D) False, neither the Tukey nor the Scheffe' test can be used. Show Answer Correct Answer: B) False, only the Tukey test can be used. 16. Assume that the conclusion from an ANOVA is that the null hypothesis is rejected, in other words that the 7 population means are not all equal. We should expect that A) All 21 of the comparisons of means would be significant using the Scheffe test. B) At least 7 of the comparisons of means would be significant using the Scheffe test. C) At least 4 of the comparisons of means would be significant using the Scheffe test. D) At least 1 of the comparisons of means would be significant using the Scheffe test. Show Answer Correct Answer: D) At least 1 of the comparisons of means would be significant using the Scheffe test. 17. Analysis of variance is a statistical method of comparing the ..... of several populations. A) Standard deviations. B) Variances. C) Means. D) Proportions. Show Answer Correct Answer: C) Means. 18. A large sample F-ratio (F test statistic) is likely to lead us to ..... in an ANOVA test. A) Reject Ho. B) Not reject Ho. C) Reject Ha. D) Not reject Ha. Show Answer Correct Answer: A) Reject Ho. 19. ANOVA stands for ..... A) Analysis of Variance. B) Analysis of Variation. C) A Non-Visual Analysis. D) Analysis of Variability. Show Answer Correct Answer: A) Analysis of Variance. 20. If the F value is less than the F critical value, how do we determine the hypothesis? A) Fail to reject the null hypothesis. B) Reject the null hypothesis. C) The null hypothesis are equal. D) None of above. Show Answer Correct Answer: A) Fail to reject the null hypothesis. 21. The following are assumptions for ANOVA except: A) Variance must be homogenous. B) There should be 4 or more independent groups. C) Data must be normally distributed. D) Randomly selected. Show Answer Correct Answer: B) There should be 4 or more independent groups. 22. The number of times each experimental condition is observed in a factorial design is known as A) Partition. B) Experimental condition. C) Factor. D) Replication. Show Answer Correct Answer: D) Replication. 23. How many independent and dependent variables are there in a One-Way Within Groups ANOVA? A) 1 independent variable and 1 dependent variable. B) 2 independent variables and 1 dependent variable. C) 1 independent variable and 3 dependent variables. D) 1 independent variable and 2 dependent variable. Show Answer Correct Answer: A) 1 independent variable and 1 dependent variable. 24. Which of the following are NOT assumptions about ANOVA? Select all that apply. A) The populations from which the samples were obtained must be normally or approximately normally distributed. B) The samples must be independent of one another. C) The variances of the populations must be equal. D) The groups must be equal in sample size. Show Answer Correct Answer: D) The groups must be equal in sample size. 25. In a one-way ANOVA, if the computed F value exceeds the critical F value, what decision is made regarding the null hypothesis A) Reject H0 since there is evidence of a treatment effect. B) Do not reject H0 because a mistake has been made. C) Reject H0 since there is evidence that all means differ. D) Do not reject H0 since there is no evidence of a difference. Show Answer Correct Answer: C) Reject H0 since there is evidence that all means differ. 26. ANOVA was first developed by ..... A) Charles Darwin. B) Karl Pearson. C) Ronald A. Fisher. D) None of above. Show Answer Correct Answer: C) Ronald A. Fisher. 27. ANOVA testing is used for ..... A) Test for two means. B) Test for three or more means. C) Test for independence between two variables. D) Test for one mean. Show Answer Correct Answer: B) Test for three or more means. 28. A formal way of predicting no significant differences between datasets A) Alternative hypothesis. B) Two-tailed hypothesis. C) One-tailed hypothesis. D) Null hypothesis. Show Answer Correct Answer: D) Null hypothesis. 29. An F-test can be used to compare the variances of three or more means. A) True. B) False, it is used to compare means of three or more variances. C) False, it is used to compare means of two or more variances. D) False, it is used to compare variances of two or more means. Show Answer Correct Answer: A) True. 30. When conducting a one-way ANOVA, the ..... the between-treatment variability is when compared to the within-treatment variability, the ..... the value of FDATA will tend to be. A) Smaller, larger. B) Smaller, smaller. C) Larger, larger. D) Smaller, more random. Show Answer Correct Answer: B) Smaller, smaller. Next →Related QuizzesPaper 1 QuizzesUgc Net QuizzesAnalysis Of Variance Quiz 2Chi Square QuizCoefficient Of Variation Discrete Serious And Continuous Serious QuizConcept Of Point And Interval Estimation QuizConcept Of Sampling And Other Concepts Related To Sampling QuizConfidence Intervals QuizCorrelation Coefficient Coefficient Of Determination QuizDecision Making With Hypothesis Testing Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books