IQ's Corner: September 2019

Saturday, September 21, 2019

All you need is g? Predicting piano skill acquisition in beginners: The role of general intelligence, music aptitude, and mindset

Abstract; This study was designed to investigate sources of individual differences in musical skill acquisition. We had 171 undergraduates with little or no piano-playing experience attempt to learn a piece of piano music with the aid of a video-guide, and then, following practice with the guide, attempt to perform the piece from memory. A panel of musicians evaluated the performances based on their melodic and rhythmic accuracy. Participants also completed tests of working memory capacity, fluid intelligence, crystallized intelligence, processing speed, and two tests of music aptitude (the Swedish Music Discrimination Test and the Advanced Measures of Music Audiation). Measures of general intelligence and music aptitude correlated significantly with skill acquisition, but mindset did not. Structural equation modeling revealed that general intelligence, music aptitude, and mindset together accounted for 22.4% of the variance in skill acquisition. However, only general intelligence contributed significantly to the model (β = 0.44, p < .001). The contributions of music aptitude (β = 0.08, p = .39) and mindset (β = −0.06, p = .50) were non-significant after accounting for general intelligence. We also found that openness to experience did not significantly predict skill acquisition or music aptitude. Overall, the results suggest that after accounting for individual differences in general intelligence, music aptitude and mindset do not predict piano skill acquisition in beginners.

Wednesday, September 18, 2019

Frontiers | Comparing the Effects of Rhythm-Based Music Training and Pitch-Based Music Training on Executive Functions in Preschoolers | Frontiers in Integrative Neuroscience

https://www.frontiersin.org/articles/10.3389/fnint.2019.00041/full?utm_source=F-AAE&utm_medium=EMLF&utm_campaign=MRK_1092681_55_Neuros_20190910_arts_A

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Kevin McGrew, PhD
Educational Psychologist
Director, Institute for Applied Psychometrics
IAP
www.themindhub.com
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New Perspective on Cerebellar Function – Implications for Mental Health

New Perspective on Cerebellar Function – Implications for Mental Health
https://www.newperspectivesoncerebellarfunction.com/

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Tuesday, September 17, 2019

Digit Span Subscale Scores May Be Insufficiently Reliable for Clinical Interpretation: Distinguishing Between Stratified Coefficient Alpha and Omega Hierarchical - Gilles E. Gignac, Matthew R. Reynolds, Kristof Kovacs, 2019

Digit Span Subscale Scores May Be Insufficiently Reliable for Clinical Interpretation: Distinguishing Between Stratified Coefficient Alpha and Omega Hierarchical - Gilles E. Gignac, Matthew R. Reynolds, Kristof Kovacs, 2019
https://journals.sagepub.com/doi/full/10.1177/1073191117748396

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Kevin McGrew, PhD

Educational Psychologist

Director, Institute for Applied Psychometrics

IAP

www.themindhub.com

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Saturday, September 14, 2019

The Flynn effect for fluid IQ may not generalize to all ages or ability levels: A population-based study of 10,000 US adolescents - ScienceDirect

https://www.sciencedirect.com/science/article/abs/pii/S0160289619301679

Sunday, September 08, 2019

A-79 Flynn Effect Correction: Accuracy Base Rate for IQ/Ability Level | Archives of Clinical Neuropsychology | Oxford Academic

https://academic.oup.com/acn/article-abstract/34/6/939/5555276?redirectedFrom=fulltext

Saturday, September 07, 2019

Status of Dr. Kevin McGrew: "I'm back!!"

As many of my readers may (or may not) know, this past winter I was critically ill for 82 days. As a result, I was unable to respond to many questions or requests. But...I have been on the mend since the middle of February and am again at full steam.

Why am I sharing? Well....apparently the word spread that I had either expired or had retired. This is far from the truth. I am back doing my project work, research, and engaging in consultations. Thanks to all who provided support during my illness.