Psychometrics

 
Standardization

The test has been standardized according to the following age groups.

8-11, 12, 13, 14, 15, 16-39, 40-44, 45-49, 50-54, 55-50, over 60

The standard deviation is 15.

Each subtest has been standardized and returns a percentile score based on the entire population of test takers. The subtests scores are reported as scores from 0-100.

 

Reliability

Item analysis: The Cronbach's Alpha of all items is 0.822.
No item if deleted will lead to an increase.

Factor analysis indicates the presence of a general intelligence factor.

Concurrent Validity

Questionnaire feedback has been used to establish correlations with other standardized tests of intelligence, achievement and aptitude. The Pearson correlation coefficient r is reported for each test.

Mensa 0.51
Ravens 0.42
ACT 0.443
ASVAB Armed Services Vocational Aptitude Battery 0.69
Stanford Binet 0.363
Wechsler Scales (WAIS & WISC combined) 0.32

 

Feedback from the questionnaire shows a clear relationship between education levels, occupational status and test scores in the following order.

Occupation
1.Technical
2.Professional
3.SeniorManagement
4.OtherManagement
5.Student
6.OtherEmployed
7.Administrative
8.Full-timeparent
9.Sales
10.Unemployed
11.Retired

Education level
1.PHD
2.Mastersdegree
3.Collegegraduate
4.Highschool
5.Noformaleducation

 
 
 
     

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