A Rasch analysis of the High Potential Trait Indicator: A South African sample

The reliability and validity of the six traits comprising High Potential Trait Indicator (HPTi) were evaluated using Rasch analysis. Focus was designated to unidimensionality local independence each subscale; fit model; person separation; differential item functioning (DIF). Secondary data, obtained from intellectual property rights holder Thomas International, used for analysis with a sample 1257 South African respondents. One traits, Curiosity (0.73), found be reliable. Traits Adjustment (0.69) Competitiveness border on accepted cut-off 0.70. Risk Approach (0.64) lowest reliability, closely followed by Conscientiousness (0.65) Ambiguity Acceptance (0.65). Six 78 HPTi items did not model, all which underfit model. unidimensional, while scale approached value at is considered multidimensional. identified threatening based both factor loadings principal components residuals underfitting (DIF) no bias between genders, female male. Eleven displayed DIF across ethnicities home language groups. most severe instance occurred in trait Competitiveness, yet it had only one experiencing DIF. Conscientiousness, however, contained four various severities DIF.Contribution: This study highlighted shortcomings current context through findings illustrate difficult nature creating ideal personality instruments context, thus contributing body knowledge assessments Africa.