Statistics explained
I.Q. Tests for the High Range
Explanations
Accepting high-range mental ability tests for admission purposes
Balanced
g
factor loading
Compound variables
Congruence coefficient
Correction for attenuation
Correlation
Correlation with national I.Q.'s
Covariance
g
factor
Estimated
g
factor loading
Frequently encountered fallacies regarding test-related statistics
Hardness
I.Q.
Item hardness
Item-rest correlation
Item scoring recommendations
Median
Motivation for secrecy
Normalization
Number of candidates (
n
)
Preliminary norms
Proportion outscored
Protonorms
Qualified average I.Q.
Quality
Quality of norms
Quartile deviation
Range
Rank equation
Raw score
Reliability
Resolution
Robustness
Section statistics
Standard deviation
Standard error of measurement
Standard score
Test data structure
Total proportion selected on two tests with known correlation
T-scores
Variance
Weighted median
Z-score equation
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