General	Type: Spatial, 22 questions 20 minutes.
Psychometrics	Cronbach's α: 0.85 at N1753 Correlation with JCTI +0.73 N17, WAIS +0.63 N9. Norm: 2nd official.
Additional information	Difficulty:
Author	IQexams

General	Type: Verbal and numerical test, 23 questions, 21 minutes.
Psychometrics	Cronbach's α: 0.79 at N226. Correlation with pro tests r: +0.75, at N16. Norm: 1st official 01/12/2020.
Additional information	Difficulty:
Author	Dr. G. A. Grove

General	Type: Numerical, 30 questions, 27 minutes.
Psychometrics	Cronbach's α: 0.91 at N50. Correlation with pro tests. 0.80 at N=10. Norm: 1st official.
Additional information	Difficulty:
Author	Nitish Joshi

General	Type: Verbal, 30 questions, 40 minutes.
Psychometrics	Cronbach's α: 0.76 at N41. Correlation with pro tests. 0.71 at N=9. Norm: 1st official.
Additional information	Difficulty:
Author	Christian Backlund

General	Type: Numerical. 40 questions, 60 minutes.
Psychometrics	Cronbach's α: 0.90 at N87. Correlation with pro tests. 0.82 at N=11. Norm: 1st official.
Additional information	Difficulty:
Author	Christian Backlund

General	Type: Numerical. 50 questions, 30 minutes.
Psychometrics	Cronbach's α: N/A. Norm: Preliminary.
Additional information	Difficulty:
Author	Gevri Bisset

General	Type: Verbal. 32 questions, 100 minutes.
Psychometrics	Cronbach's α: 0.85. Norm: Preliminary.
Additional information	Difficulty:
Author	IQexams

General	Type: Mixed, 27 questions 30 minutes.
Psychometrics	Cronbach's α: 0.76 at N=53. Correlation with pro tests. 0.83 at N=7. Norm: 1st official.
Additional information	Difficulty:
Author	Christian Backlund

General	Type: Spatial. 23 questions, 20 minutes.
Psychometrics	Cronbach's α: 0.80 at N=148. Correlation with pro tests. 0.77 at N=18. Norm: 1st official.
Additional information	Difficulty:
Author	Christian Backlund

General	Type: Spatial. 16 questions, 30 minutes.
Psychometrics	Cronbach's α: 0.74 at N=126. Correlation with pro tests. 0.60 at N=12. Norm: 1st official.
Additional information	Difficulty:
Author	Christian Backlund

General	Type: Verbal. 38 questions, 25 minutes.
Psychometrics	Cronbach's α: 0.81 at N=54. Correlation with pro tests. 0.73 at N=7. Norm: 1st official.
Additional information	Difficulty:
Author	Christian Backlund

General	Type: Numerical. 30 questions, 60 minutes.
Psychometrics	Cronbach's α: 0.85 at N=47. Correlation with pro tests. 0.86 at N=7. Norm: 1st official.
Additional information	Difficulty:
Author	Christian Backlund

Number of Tests taken so far: 92087

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