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Chapter 3: Statistics Refresher
Test Description: Tests and Measurements
Instructions: Answer all questions to get your test result.
1) Relatively few scores fall at the high end of the distribution
A
Effect Size
B
Negatively Skewed
C
Positively Skewed
D
Kurtosis
2) The steepness of a distribution in its center
A
Kurtosis
B
Variability
C
Variance
D
Skewness
3) Stretching the skewed curve into the shape of a normal curve and creating a corresponding scale of standard scores
A
Normalizing a distribution
B
Coefficient of determination
C
Normalized standard score scale
D
Correlation relation
4) Contain equal intervals between numbers
A
Interval scales
B
Ratio scales
C
Ordinal scales
D
Nominal scales
5) A straightforward, unmodified accounting of performance
A
Variance
B
Raw score
C
Z score
D
Average deviation
6) The interquartile range divided by 2
A
Semi-interquartile range
B
Standard scores
C
Median
D
Interval scales
7) Interval scales with a true zero point
A
Ordinal scales
B
Interval scales
C
Nominal scales
D
Ratio scales
8) The collective influence of all factors on a test score beyond those specifically measured
A
Skewness
B
Outliers
C
Variance
D
Errors
9) Numerical index that expresses the relationship between variables
A
Standard deviation
B
Variability
C
Correlation coefficients
D
Effect size
10) Statistically combining information across studies to produce single estimates of the data under study
A
Effect Size
B
Blinding
C
Cohen's D
D
Meta-Analysis
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