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When judging candidate’s, less is more: How nondiagnostic information affects judgment in the process of personnel selection

Seth, Vilma LU (2022) PSYP02 20221
Department of Psychology
Abstract
Previous studies have found what is referred to as a dilution effect of nondiagnostic information when subjects make evaluative judgment tasks of future performance, meaning that the presence of nondiagnostic information makes predictions less extreme. However, a large study recently failed to replicate this effect. The hypothesis of this study is that judges can discard from obviously irrelevant information but fail to do so when the information is seemingly relevant (meaning apparently useful, but without an effect on performance), and that this will influence both the ranking of the candidates and the amount of variance, or noise, in the evaluations. To measure this the participants (N = 145) were randomly assigned to three different... (More)
Previous studies have found what is referred to as a dilution effect of nondiagnostic information when subjects make evaluative judgment tasks of future performance, meaning that the presence of nondiagnostic information makes predictions less extreme. However, a large study recently failed to replicate this effect. The hypothesis of this study is that judges can discard from obviously irrelevant information but fail to do so when the information is seemingly relevant (meaning apparently useful, but without an effect on performance), and that this will influence both the ranking of the candidates and the amount of variance, or noise, in the evaluations. To measure this the participants (N = 145) were randomly assigned to three different conditions where they judged the same 15 job candidates. In one condition only diagnostic information about the candidates was shared, in the second the participants also received obviously nondiagnostic information (about hobbies, siblings, favourite food and similar) and in the third condition the participants received diagnostic information and seemingly diagnostic information, in the form of personality traits without relation to performance and the candidate’s self-description. The study found that while there was no effect of the nondiagnostic information on judgment, there was a significant effect of the seemingly diagnostic information on the ranking of candidates, as well as on the amount of variance, in judgments of individual candidates. The conclusion is that judges seem able to disregard obviously nondiagnostic information, but are still affected by seemingly diagnostic information, which affects ranking and adds variability. (Less)
Please use this url to cite or link to this publication:
author
Seth, Vilma LU
supervisor
organization
course
PSYP02 20221
year
type
H1 - Master's Degree (One Year)
subject
keywords
dilution effect, personnel selection, recruiting, nondiagnostic information, noise
language
English
id
9089249
date added to LUP
2022-07-01 12:20:33
date last changed
2022-07-01 12:20:33
@misc{9089249,
  abstract     = {{Previous studies have found what is referred to as a dilution effect of nondiagnostic information when subjects make evaluative judgment tasks of future performance, meaning that the presence of nondiagnostic information makes predictions less extreme. However, a large study recently failed to replicate this effect. The hypothesis of this study is that judges can discard from obviously irrelevant information but fail to do so when the information is seemingly relevant (meaning apparently useful, but without an effect on performance), and that this will influence both the ranking of the candidates and the amount of variance, or noise, in the evaluations. To measure this the participants (N = 145) were randomly assigned to three different conditions where they judged the same 15 job candidates. In one condition only diagnostic information about the candidates was shared, in the second the participants also received obviously nondiagnostic information (about hobbies, siblings, favourite food and similar) and in the third condition the participants received diagnostic information and seemingly diagnostic information, in the form of personality traits without relation to performance and the candidate’s self-description. The study found that while there was no effect of the nondiagnostic information on judgment, there was a significant effect of the seemingly diagnostic information on the ranking of candidates, as well as on the amount of variance, in judgments of individual candidates. The conclusion is that judges seem able to disregard obviously nondiagnostic information, but are still affected by seemingly diagnostic information, which affects ranking and adds variability.}},
  author       = {{Seth, Vilma}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{When judging candidate’s, less is more: How nondiagnostic information affects judgment in the process of personnel selection}},
  year         = {{2022}},
}