The dataset is categorised by item types. Each folder contains data for one item type, including the item-level data, the participants information, and the item files. There are 8 folders in total, contributing data for 2d rotation test, 3d rotation test, face detection test, matrices reasoning test, perceptual maze test, two number series tests, and linear syllogism test.

Folder 2d rotation:
-item bank for test form 1
-item bank for test form 2
-demographic information of participants taking part in test form 1
-item-level data on reaction time for test form 1
-item-level data on response accuracy for test form 1
-demographic information of participants taking part in test form 2
-item-level data on reaction time for test form 2
-item-level data on response accuracy for test form 2
-readme file 

Folder 3d rotation:
-item bank for test form 1
-item bank for test form 2
-demographic information of participants taking part in both forms
-item-level data on reaction time for both forms
-item-level data on response accuracy for both forms
-readme file

Folder face:
-readme file for all test variables
-readme file for the FaceIQ tests
-FaceIQ data
-face detection test data
-readme file for the face detection test
-reference paper for the face detection test

Folder matrices:
-item bank
-demographic information
-answers to the items
-item-level response data
-readme file

Folder maze:
-item bank of the perceptual maze test
-demographic information of participants
-readme file
-item-level data for the perceptual maze test

Folder number series 1
-ICAR 16 items
-item bank for two test forms
-item-level data for the ICAR 16 test
-readme file
-item-level data for test form 1
-demographic information of participants taking par in test form 1
-item-level data for test form 2
-demographic information of participants taking par in test form 2

Folder number series 2
-item bank consisting of 5 raven items and 4 item sets of number series items
-item-level data for the number series items (60 minutes allowed for the test)
-item-level data for the number series items (45 minutes allowed for the test)
-demographic information of participants (60 minutes allowed for the test)
-demographic information of participants (45 minutes allowed for the test)
-item-level data for the raven items (60 minutes allowed for the test)
-item-level data for the raven items (45 minutes allowed for the test)
-readme file

Folder syllogism
-demographic information
-item bank for the syllogism test
-readme file
-item-level data for the syllogism items