MATHEMATICS

Question 1

What test would you want to use to test a nondirectional research hypothesis?
  1. Answer
[removed] A. One-tailed test
[removed] B. Two-tailed test
[removed] C. Non-parametric test
[removed] D. Frequency test

0.5 points

Question 2

Approximately what percent of scores will fall within one standard deviation of the mean under the normal curve?

Answer

[removed] A. 14
[removed] B. 34
[removed] C. 68
[removed] D. 95

0.5 points

Question 3

The degree of risk you are willing to take that you will reject the null hypothesis when it is actually true is called ____________.

Answer

[removed] A. Statistical significance
[removed] B. Type II error
[removed] C. Type III error
[removed] D. Power

0.5 points

Question 4

If you posit a relationship between two variables as being positive (or negative), what type of test should you use?

Answer

[removed] A. Two-tailed
[removed] B. ANOVA
[removed] C. One-tailed
[removed] D. Cohen’s d

0.5 points

Question 5

What does your research question help to guide?

Answer

[removed] A. Relationships
[removed] B. Hypothesis
[removed] C. Sampling error
[removed] D. Average score

0.5 points

Question 6

If the obtained value is less than the critical value, what should you do?

Answer

[removed] A. Reject the null hypothesis
[removed] B. Accept the null hypothesis
[removed] C. Set a higher p value
[removed] D. Increase your sample

0.5 points

Question 7

What is the term associated with how flat or peaked a distribution appears?
  1. Answer
[removed] A. Ogive
[removed] B. Skewness
[removed] C. Kurtosis
[removed] D. Variability

0.5 points

Question 8

When describing a set of nominal data, a researcher should use which of the following measures of central tendency?

Answer

[removed] A. Mode
[removed] B. Median
[removed] C. Standard deviation
[removed] D. Mean

0.5 points

Question 9

When the sample accurately represents the population, the results of the study are said to have a high degree of _____________.

Answer

[removed] A. reliability
[removed] B. validity
[removed] C. consistency
[removed] D. generalizability

0.5 points

Question 10

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