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This research aims to develop and analyze corrections for statistical tests used in skew-t regression models in small samples.

Statistical test corrections for the skew-t regression model in small samples

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Statistical tests corrections enhance model accuracy in small samples, indicating better reliability for applications.

This research aims to develop and analyze corrections for statistical tests used in skew-t regression models in small samples.
Developed corrections for the signed ratio test, likelihood ratio test, and gradient test.
Utilized Fraser-Reid-Wu type correction for the signed ratio test.
Applied Bartlett bootstrap corrections for the likelihood ratio test.
Conducted a simulation study to compare test sizes and powers.
Used real-data applications to illustrate the proposed methods.
Original tests showed liberal behavior in small samples.
Corrected tests achieved nominal levels more accurately.
Similar power between original tests and their corrected versions.

Jeniffer Johana Duarte Sanchez (2026) studied this question.

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