This project contains the supplementary information, data, and materials for 'Bias in confidence: A critical test for discrete-state models of visual working memory' by Winiger, Singmann, & Kellen.
The storage for the main component contains the example figure showing an example trial, `wm bias trial snapshot.pdf`.
The code producing all results reported in the manuscript is contained in `analysis.R` which requires `R` and [`Jags`](http://mcmc-jags.sourceforge.net/). As interface to `Jags` it furthermore requires the `R` package [`R2Jags`](https://cran.r-project.org/package=R2jags).
The `R` script furthermore requires the data present in subfolders `data 1` and `data 2`. The individual data files have the following columns (columns are separated by `;`, decimal point is `.`):
- `id`: Unique participant identifier (number)
- `date`: date and time of testing
- `block`: test block with values: `example`, `1`, `2`, `3`, `4`, and `9`. `example` is the initial confidence-rating block and `9` is the final binary-response block.
- `response_format`: with two levels `binary` and `conf_rating`.
- `base_rate`: proportion of change trials.
- `set_size`: `5` throughout
- `response`: ranging from 0 (maximum confidence change) to 7 (maximum confidence same) when `response_format` is `conf_rating`. In case `response_format` is equal to `binary`, `0` is change and `1` is same.
- `rt`: response time in seconds
- `pos`: Array of the positions of all items in the study display. Each position is given as an array with `x` then `y` coordinate.
- `colours`: Array of the color of the items in the study display. Each color is given in RGB coordinates.
- `change`: is the test item a change (= `True`) or same (= `False`) item.
- `test_pos`: Position of test item.
- `test_col`: color of test item.
- `t_cross`: Time of fixation cross (in seconds)
- `t_blank`: Time of blank interval after study display (in seconds).
- `t_mask`: Time of visual mask (in seconds).
