ds_aat: Example Approach Avoidance Task (AAT) Measurement Data in...

In splithalfr: Estimate Split-Half Reliabilities

Example Approach Avoidance Task (AAT) Measurement Data in JASMIN2 Format

Description

The JASMIN1 AAT was an irrelevant feature task, in which participants were instructed to approach/avoid left/right rotated stimuli. This particular AAT was administered (and described in detail) in \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1111/add.14071")}Boffo et al., 2018. Participants were presented stimuli from a "test" category, which were gambling-related pictures, and from a "control" category, which were pictures unrelated to gambling. It registered approach responses by participants pressing (and holding) the arrow down key, while avoid responses were given via the arrow up key. Upon a response, the stimulus zoomed in or out, until it disappeared from the screen. The first response to a stimulus was logged. The dataset contains one row per trial. This dataset was graciously provided by Eva Schmitz.

Usage

ds_aat

Format

An object of class data.frame with 6528 rows and 12 columns.

Details

Overview of columns:

• UserID. Identifies participants

• approach_tilt. If "left", participants were instructed to approach left rotated stimuli. If "right", participants were instructed to approach right rotated stimuli.

• block_type. Type of block: "practice" for practice trials with neutral stimuli, "assess" for assessment trials with salient stimuli

• block. Counts blocks, starting at zero

• trial. Counts trials in blocks, starting at zero

• appr. If "yes", this trial was an approach trial. If "no", this trial was an avoid trial.

• tilt. Whether the stimulus was rotated to the "left" or to the "right"

• cat. Stimulus category: "practice", "test", or "control"

• stim. Stimulus ID

• response. Response; 1 = correct, 2 = incorrect, 3 = timeout (no response in 4000 ms), 4 = invalid key

• rt. Response time in milliseconds

• sust. Was approach or avoid response sustained until the stimulus was completely zoomed in or out?

splithalfr documentation built on Sept. 15, 2023, 1:08 a.m.