Skip to contents

Exclude participants with suspiciously fast mean reaction times

filter_fast_responders.Rd

Removes participants whose mean reaction time falls below a threshold, which is used as a heuristic for detecting random or inattentive responding. The comparison is performed on the log scale so that the threshold is applied uniformly regardless of RT distribution skew.

Usage

filter_fast_responders(d, min_mean_rt_ms = 1000)

Arguments

d

Data frame with columns worker_id and rt. rt will be coerced to numeric via as.numeric; non-numeric values become NA and are excluded from the mean.

min_mean_rt_ms

Numeric. Minimum mean RT in milliseconds. Participants with mean(rt) < min_mean_rt_ms are removed. Default: 1000.

Value

The input data frame with rows belonging to excluded participants removed.

Examples

if (FALSE) { # \dontrun{
d <- data.frame(
  worker_id = c(rep("p1", 100), rep("p2", 100)),
  rt        = c(rnorm(100, 1500, 200), rnorm(100, 300, 50))
)
filter_fast_responders(d, min_mean_rt_ms = 1000)
# only p1 is retained
} # }