# IQ Test Labs

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### Cognitive abilities

• Discover which actions are most likely to be performed on which items.
• Addition/subtraction, and inclusion/exclusion are more common.
• Gaining familiarity with common actions leads to faster solutions and dissolves some of the complexity of more difficult questions.

### Culture-fair matrices: Actions

List of actions:

• Subtraction: Subtracting one cell's contents from another.
• Increase/decrease: This usually relates to distances between points or angles between lines.
• Include common parts: The common parts of two cells are included in the third cell.
• Exclude common parts: The common parts of two cells are excluded from the third ell.
• Match: Identical items and items that share a common theme.
• Rotate: An object may rotate around itself or another object, or the whole cell may rotate.
• Move: Up/down, left/right, and diagonally; usually in a grid.
• Flipped: Mirror-reversal of an item across a horizontal axis or vertical axis.
• Intersect: Intersecting lines and shapes.
• Merge: Merging lines, shapes, and cells.
• Cut: Items may be trimmed, clipped, shortened, and divided into equal/unequal parts.
• Fold: Symmetrical and asymmetrical shapes that are folded in or out.
• Resize: Items are shortened/lengthened or enlarged/made smaller.
• Cover: Items covering all or part of other lines and shapes.
• Form: Transforming shapes.

### Example:

The third column is the sum of the ellipses in the first two columns.

Fig 2: Subtraction

The rings are subtracted from the squares.

Fig 3: Include common parts

The ring is what is common to columns one and two.

Fig 4: Exclude common parts.

The dot is excluded from the third column.

Fig 5: Rotation

The line and the two half-lines are all moving CW by 45°.

Fig 6: Increase/decrease

The top and bottom line segments rotate 45°, then 90° CW.

Fig 7: Move

Each dot first moves towards the center, then outwards.

Fig 8: Mirror

Relative to the first column, the second column is flipped across a vertical axis.

Relative to the first column, the third column is flipped across a horizontal axis.

Fig 9: Intersect

The intersection of two hexagons creates a diamond shape.