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Score the Personality Inventory for DSM-5

Source: R/score_pid5.R
score_pid5.Rd

Calculate scale scores on the Personality Inventory for DSM-5: full version (PID-5, 220 items), short form version (PID-5-SF, 100 items), or brief form version (PID-5-BF, 25 items) from item-level data.

Usage

score_pid5(
  data,
  items,
  version = c("FULL", "SF", "BF"),
  srange = c(0, 3),
  prefix = "pid_",
  na.rm = TRUE,
  calc_se = FALSE,
  append = TRUE,
  tibble = TRUE
)

Arguments

data

A data frame containing (at least) all the PID items (numerically scored and in order).

items

A vector of column names (as strings) or numbers (as integers) corresponding to the PID items in order.

version

A string indicating the version of the PID to score: "FULL", "SF", or "BF". Will be automatically capitalized. (default = "FULL")

srange

An optional numeric vector specifying the minimum and maximum values of the items, used for reverse-coding. (default = c(0, 3))

prefix

An optional string to add before each scale column name. If no prefix is desired, set to an empty string "". (default = "pid_")

na.rm

An optional logical indicating whether missing values should be ignored when calculating scale scores. (default = TRUE)

calc_se

An optional logical indicating whether to calculate the standard error of each scale score. (default = FALSE)

append

An optional logical indicating whether the new columns should be added to the end of the data input. (default = TRUE)

tibble

An optional logical indicating whether the output should be converted to a tibble. (default = TRUE)

Value

A tibble containing all scale scores and standard errors (if requested) and all original data columns (if requested)

References

Krueger, R. F., Derringer, J., Markon, K. E., Watson, D., & Skodol, A. E. (2012). Initial construction of a maladaptive personality trait model and inventory for DSM-5. Psychological Medicine, 42, 1879-1890. doi:10.1017/s0033291711002674

Anderson, J. L., Sellbom, M., & Salekin, R. T. (2016). Utility of the Personality Inventory for DSM-5-Brief Form (PID-5-BF) in the measurement of maladaptive personality and psychopathology. Assessment, 25(5), 596–607. doi:10.1177/1073191116676889

Maples, J. L., Carter, N. T., Few, L. R., Crego, C., Gore, W. L., Samuel, D. B., Williamson, R. L., Lynam, D. R., Widiger, T. A., Markon, K. E., Krueger, R. F., & Miller, J. D. (2015). Testing whether the DSM-5 personality disorder trait model can be measured with a reduced set of items: An item response theory investigation of the personality inventory for DSM-5. Psychological Assessment, 27(4), 1195–1210. doi:10.1037/pas0000120