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Practice Quiz



 This activity contains 25 questions.

Question 1.
What is the term used to describe a distribution of scores created by drawing an unlimited number of samples of 20 scores from a population, computing the mean for these scores, and plotting means?

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Question 2.
Which of the following statistics is most closely related to the standard error of the mean?

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Question 3.
Approximately what percentage of mean scores fall below your observed mean if it is one standard error of the mean above the population mean?

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Question 4.
A sample size increases, the standard error of the mean

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Question 5.
Which of the following hypotheses describe the null hypothesis for testing the difference between two means?

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Question 6.
Which of the following hypotheses describes the null hypothesis for testing the relationship between two variables?

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Question 7.
Which of the following is a correct interpretation of a significant t test result when comparing two mean scores using an alpha level of .05?

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Question 8.
A significant result of a chi square test of significance would suggest the researcher should

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Question 9.
A rejection of the null hypothesis when in reality it should have been accepted is a

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Question 10.
Ms. Landry has set a very conservative alpha level of .001 for her analysis. She is likely concerned about a

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Question 11.
Which of the following is the most common probability level used in educational research?

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Question 12.
The literature related to a particular instructional strategy is quite clear about its effectiveness. You are concerned, however, about the magnitude of the increases in students' test scores. Given this situation, you are justified in using a

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Question 13.
Parametric tests of significance are to nonparametric tests of significance as

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Question 14.
Which of the following is an advantage of using a parametric test over a nonparametric test?

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Question 15.
Which of the following is needed to use a test for independent samples?

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Question 16.

Mr. Marino has identified two groups of students to participate in his study examining the effectiveness of using algebra tiles. One group will use these manipulatives while a second group will receive a traditional lecture approach. Which test should be used to test the differences between the mean scores for the two classes?

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Question 17.
Mr. Arroyo is interested in the gains made by his students from pretest to posttest. Which statistical test of significance is appropriate for him to use?

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Question 18.
Ms. Kirby has selected a pretest posttest experimental control group design for her study. Which statistical test is the most appropriate to analyze her data?

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Question 19.
Which of the following characteristics differentiates an ANOVA from a t test?

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Question 20.
Which of the following is a common post-hoc test?

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Question 21.
A factorial ANOVA is used to

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Question 22.
Which of the following most clearly differentiates a factorial ANOVA from a simple ANOVA?

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Question 23.
A variable which is used to adjust posttest scores for initial differences is known as a

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Question 24.
Which of the following is a unique function of ANCOVA?

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Question 25.

Ms. Pope is making decisions about whether to accept students into college. Her decisions are based on a prediction of students' future performance derived from high school GPA, ACT scores, and college placement test scores. Which statistical procedure did she use to develop this predictive process?

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