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Calculate validity 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 and return alerts when when observations meet criteria for invalidity.

Usage

validity_pid5(
  data,
  items,
  version = c("FULL", "SF", "BF"),
  srange = c(0, 3),
  prefix = "pid_",
  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_")

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 validity scores and all original data columns (if requested)

Details

For the full PID-5, a score of 17 or higher on the INC is indicative of inconsistent responding. A score of 3 or higher on the ORS is indicative of overreporting. A score of 10 or lower on the PRD is indicative of positive impression management (underreporting rather than genuine responding) whereas a score of 21 or higher on the PRD is indicative of genuine responding (rather than positive impression management). A score of 11 or lower on the SD-TD is indicative of social desirability (rather than defensiveness), whereas a score of 19 or higher on the SD-TD is indicative of defensiveness (rather than social desirability). For the PID-5-SF, scores of 8 or more on the INC-S are indicative of inconsistent responding. Cut-scores for the ORS-S, PRD-S, and SD-TD-S have not yet been validated.

References

Keeley, J. W., Webb, C., Peterson, D., Roussin, L., & Flanagan, E. H. (2016). Development of a Response Inconsistency Scale for the Personality Inventory for DSM-5. Journal of Personality Assessment, 98(4), 351-359. doi:10.1080/00223891.2016.1158719

Sellbom, M., Dhillon, S., & Bagby, R. M. (2018). Development and validation of an overreporting scale for the Personality Inventory for DSM-5 (PID-5). Psychological Assessment, 30(5), 582-593. doi:10.1037/pas0000507

Bagby, R. M., & Sellbom, M. (2018). The Validity and Clinical Utility of the Personality Inventory for DSM–5 Response Inconsistency Scale. Journal of Personality Assessment, 100(4), 398–405. doi:10.1080/00223891.2017.1420659

Williams, M. M., Rogers, R., Sharf, A. J., & Ross, C. A. (2019). Faking Good: An Investigation of Social Desirability and Defensiveness in an Inpatient Sample With Personality Disorder Traits. Journal of Personality Assessment, 101(3), 253–263. doi:10.1080/00223891.2018.1455691

Lowmaster, S. E., Hartman, M. J., Zimmermann, J., Baldock, Z. C., & Kurtz, J. E. (2020). Further Validation of the Response Inconsistency Scale for the Personality Inventory for DSM-5. Journal of Personality Assessment, 102(6), 743–750. doi:10.1080/00223891.2019.1674320