Codebook Experimental Data

SubjectID

• Description: A unique identifier for each participant in the study.
• Data Type: Numeric.
• Role: Identifier.

SessionID

• Description: A unique identifier for each experimental session.
• Data Type: Numeric.
• Role: Identifier.

BlockID

• Description: A unique identifier for each block of trials within a session.
• Data Type: Numeric.
• Role: Identifier.

Condition

• Description: Represents one of the 25 unique stimulus conditions defined by contrast heterogeneity and grid coarseness.
• Data Type: Categorical (1 to 25).
• Role: Identifier.

ContrastHeterogeneity

• Description: The range of contrast within the rectangular figure region; one of five values (0.01, 0.2575, 0.505, 0.7525, 1).
• Data Type: Numeric (Continuous).
• Role: Independent Variable.

GridCoarseness

• Description: The scaling factor determining the coarseness of the grid; one of five values (1, 1.125, 1.250, 1.375, 1.5).
• Data Type: Numeric (Continuous).
• Role: Independent Variable.

IndicatedOrientation

• Description: The orientation (horizontal or vertical) indicated by the participant for the rectangular region.
• Data Type: Categorical (Horizontal, Vertical).
• Role: Instrumental Variable.

ActualOrientation

• Description: The actual orientation of the rectangular region within the stimulus.
• Data Type: Categorical (0 = Horizontal, 1 = Vertical).
• Role: Instrumental Variable.

Correct

• Description: A binary variable indicating whether the participant's indicated orientation matches the actual orientation of the figure.
• Data Type: Binary (0, 1).
• Role: Dependent Variable.