Taking Aim at Good Targets: Inter-rater Agreement of Listening Competency

In a post hoc study conducted on closed files at the Centre of Audio-Psycho-Phonology, the psychometric distributionof Listening Threshold decibel scores was found to be positively skewed, and in some cases bi-modal, necessitating the use of non-parametric statistics for hypothesis testing. The author notes inappropriate statistical usage in previously published studies investigating the Listening Threshold variable. Once correct statistics are applied, and appropriate controls are introduced for expected ceiling and interaction effects, Listening Threshold decibel scores were found to decrease significantly following treatment using the Tomatis remedial listening program.