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PSYC 3010 Chapter 5B Flashcards | StudBud

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z-scores allow comparison of?

Mean of z-score distribution is always?

PSYC 3010 Chapter 5B

13 terms·StudBud Administration

Test your knowledge on z-scores, standardized distributions, and statistical concepts

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Questions 13

Answers

1
Mean of z-score distribution is always?
1
10
100
0
2
z-scores allow comparison of?
Random variables
Unrelated data
Different distributions
Same distributions
3
IQ has μ=? and σ=?
100, 15
30, 5
500, 100
50, 10
4
What is the goal of research study?
Evaluate treatment effect
Calculate mean
Find mode
Determine median
5
Standardizing a distribution involves?
Adjusting the median
Altering the mode
Changing the shape
Transforming raw scores to z-scores
6
What is a standardized distribution?
Skewed distribution
z-score distribution
Normal distribution
Bimodal distribution
7
True or False: z-scores change distribution shape
True
False
Sometimes
Never
8
True or False: z-scores are comparable
Sometimes
Never
True
False
9
Given mean, raw score, and z-score, compute?
Range
Standard deviation
Mode
Median
10
Standard deviation of z-score distribution is?
1.00
10.00
0.00
100.00
11
If 2 standard deviations equal 6 points, 1 equals?
6 points
1 point
3 points
2 points
12
What does a z-score establish?
Relationship between mean and median
Relationship between variance and standard deviation
Relationship between raw score, mean, and standard deviation
Relationship between mode and range
13
True or False: z-scores change the mean
Never
True
False
Sometimes