This quiz is the practice test for the upcoming test in PSYC 2301, section 17478.
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Question 1 of 25
1. Question
What is an alpha level?
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Question 2 of 25
2. Question
What is the best type of graph to compare frequencies, percentages, or means between two or more groups?
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Question 3 of 25
3. Question
Which form of central tendency finds the arithmetic average?
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Question 4 of 25
4. Question
Which form of central tendency divides the scores in half?
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Question 5 of 25
5. Question
Which form of central tendency notes the most frequent score?
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Question 6 of 25
6. Question
Which form of variability is the mean sum squared deviation of scores from the group mean?
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Question 7 of 25
7. Question
Which form of variability is the square root of the average deviation of scores from the mean?
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Question 8 of 25
8. Question
What is the formula for the standard deviation of a population?
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Question 9 of 25
9. Question
What is the formula for the standard deviation of a sample?
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Question 10 of 25
10. Question
What is the formula for the descriptive z-score?
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Question 11 of 25
11. Question
What is the formula for the standard error?
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Question 12 of 25
12. Question
What is the formula for the inferential z-score?
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Question 13 of 25
13. Question
Which graph plots the frequency of each score, and connects the points by a line?
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Question 14 of 25
14. Question
Which graph puts frequency amounts in a circular-shaped table?
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Question 15 of 25
15. Question
Which graph uses bars to display each score, or each group of scores?
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Question 16 of 25
16. Question
In the Pearson product-movement correlation coefficient, what is the range of r?
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Question 17 of 25
17. Question
You are given the following data of a sample. Calculate the standard deviation. Round your final answer to the nearest hundredth. DO NOT ROUND until you get to your final answer.
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Question 18 of 25
18. Question
You have a set of data with a mean of fifty, and a standard deviation of 15. What would be the raw score value at a z-score of +2.00?
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Question 19 of 25
19. Question
You have a set of data, with a mean of 62 and a standard deviation of 6. What would be the z-score for a raw score of 53?
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Question 20 of 25
20. Question
You are given the following data, please calculate the standard error. Use the population SD equation to get the SD. Round to the nearest hundredth. DO NOT ROUND until you’ve gotten to your final answer.
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Question 21 of 25
21. Question
You are trying to find the Inferential Z-score for your distribution. Your Null Hypothesis amount is 100. Your standard error is 5. Your score is 75. what is your inferential Z-score?
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Question 22 of 25
22. Question
In a negatively skewed graph, the mode is towards the right of the graph.
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Question 23 of 25
23. Question
A bimodal distribution is always symmetrical.
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Question 24 of 25
24. Question
On a frequency distribution, on which axis is the independent variable plotted?
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Question 25 of 25
25. Question
The dependent variable is to the criterion variable as the independent variable is to the: