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sample sizes

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Improving Norm Score Quality with Regression-Based Continuous Norming
Psychological Measurement and Testing

How Continuous Norming Outperforms Conventional Methods

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Lenhard and Lenhard (2021) investigate how regression-based continuous norming can enhance the quality of norm scores in psychometric testing. Their study compares semiparametric continuous norming (SPCN) with conventional methods, evaluating performance across a wide range of simulated test conditions and sample sizes. Background Norm scores are crucial in psychological and …

Comparing Rasch and Classical Equating Methods for Small Samples
Statistical Methods and Data Analysis

Comparing Rasch and Classical Equating Methods for Small Samples

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Babcock and Hodge (2020) address a significant challenge in educational measurement: accurately equating exam scores when sample sizes are limited. Their study evaluates the performance of Rasch and classical equating methods, particularly for credentialing exams with small cohorts, and introduces data pooling as a potential solution. Background Equating ensures fairness …