Melbourne Conservatorium of Music - Research Publications

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Author: McPherson, Gary × Author: Wilson, Sarah × Author: Yeom, Daniel × Type: Journal Article ×

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    How accurate are self-evaluations of singing ability?
    Yeom, D ; Stead, KS ; Tan, YT ; McPherson, GE ; Wilson, SJ (WILEY, 2023-12)
    Research has shown that people inaccurately assess their own abilities on self-report measures, including academic, athletic, and music ability. Evidence suggests this is also true for singing, with individuals either overestimating or underestimating their level of singing competency. In this paper, we present the Melbourne Singing Tool Questionnaire (MST-Q), a brief 16-item measure exploring people's self-perceptions of singing ability and engagement with singing. Using a large sample of Australian twins (n = 996), we identified three latent factors underlying MST-Q items and examined whether these factors were related to an objective phenotypic measure of singing ability. The three factors were identified as Personal Engagement, Social Engagement, and Self-Evaluation. All factors were positively associated with objective singing performance, with the Self-Evaluation factor yielding the strongest correlation (r = 0.66). Both the Self-Evaluation factor and a single self-report item of singing ability shared the same predictive strength. Contrary to expectations, our findings suggest that self-evaluation strongly predicts singing ability, and this self-evaluation is of higher predictive value than self-reported engagement with music and singing.
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    Genetic factors and shared environment contribute equally to objective singing ability
    Yeom, D ; Tan, YT ; Haslam, N ; Mosing, MA ; Yap, VMZ ; Fraser, T ; Hildebrand, MS ; Berkovic, SF ; McPherson, GE ; Peretz, I ; Wilson, SJ (CELL PRESS, 2022-06-17)
    Singing ability is a complex human skill influenced by genetic and environmental factors, the relative contributions of which remain unknown. Currently, genetically informative studies using objective measures of singing ability across a range of tasks are limited. We administered a validated online singing tool to measure performance across three everyday singing tasks in Australian twins (n = 1189) to explore the relative genetic and environmental influences on singing ability. We derived a reproducible phenotypic index for singing ability across five performance measures of pitch and interval accuracy. Using this index we found moderate heritability of singing ability (h 2 = 40.7%) with a striking, similar contribution from shared environmental factors (c 2 = 37.1%). Childhood singing in the family home and being surrounded by music early in life both significantly predicted the phenotypic index. Taken together, these findings show that singing ability is equally influenced by genetic and shared environmental factors.