IQ Test Labs

Discover your intellectual strengths




Item analysis: The Cronbach's Alpha of all items is 0.822.

No item if deleted will lead to an increase.


The standard deviation is 15.

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.


  1. Technical
  2. Professional
  3. Senior management
  4. Other management
  5. Student
  6. Other employed
  7. Administrative
  8. Full-time parent
  9. Sales
  10. Unemployed

Education level

  1. PHD
  2. Masters degree
  3. College graduate
  4. High school
  5. No formal education