The effects of avoidant instructions on golf putting proficiency and kinematics

Objectives. Although the effects of avoidant or negative instructions on skilled performance in sport has received little research attention, de la Pena, Murray, and Janelle (2008) reported recently that novice golfers who were instructed not to leave a putt short of a circle, overcompensated by leaving their putts significantly longer than at baseline, and vice versa. It is unclear, however, whether athletes' propensity to engage in over-compensatory behaviour is affected by their level of expertise. Design. To address this unresolved issue, the present study investigated the influence of avoidant instructions on golfers' putting stroke proficiency (i.e., as measured by an index of putting performance and the direction in which putts are missed) and on their putting stroke performance (as measured by motion analysis). Methods. 14 high-skilled and 14 low-skilled golfers were required to putt from a distance of 2.5 m on a sloped surface which caused the ball to move left-to-right as it approached the hole. All participants performed in a condition in which they were given no instructions and in a condition in which they were instructed not to miss a putt in a specific direction (i.e., left or right of the hole). Results. High-skilled golfers' overall putting proficiency was unaffected by avoidant instructions. In contrast, low-skilled golfers' performance was significantly degraded due to disruption of certain kinematic features of their putting stroke (e.g., putter path and forward-swing times).Author has checked copyrightAM

Using Online Instruments to Assess Learning Styles of Health Professions Students: A Pilot Study

Understanding their own learning styles can assist students as they relate to one another and ultimately to their future clients. Purpose: The purpose of this study was to describe the preferred learning and personality styles of a convenience sample of Central Michigan University students enrolled in the following health-related professions: Athletic Training, Communication Disorders, Social Work, and Physician Assistant. Method: Students completed two self-administered online instruments used to measure learning styles, the VARK and the online version of the Keirsey Temperament Sorter II (KTS-II). Associations between VARK learning style scores and the online Keirsey Temperament Sorter II results were also examined. Results: Seventy-four percent of the students scored as Guardians (Sensing-Judging) based on the online KTS-II report and 62% were multimodal learners on the online version of the VARK. Conclusion: This study confirmed previous findings that Guardian is the preferred temperament type on the MBTI/KTS-II for health professions students. Average scores on the VARK and the Keirsey did not differ between the various health-related disciplines; however, students scoring as Idealists (Intuition/Feeling) on the Keirsey had significantly higher Aural scores on the VARK when compared to those with Guardian temperaments. There was no significant difference found between Keirsey groups and how they scored on Vark-V (Visual), R/W (Read/Write), or K (Kinesthetic) learning style dimensions

Health-Related Concerns of People who Receive Psychological Support for Inflammatory Bowel Disease

BACKGROUND: People with inflammatory bowel disease (IBD) cope with a number of disease-specific concerns, which may result in referrals for supportive counselling

Quantifying Quantum Nonlocality

Quantum mechanics is nonlocal, meaning it cannot be described by any classical local hidden variable model. In this thesis we study two aspects of quantum nonlocality. Part I addresses the question of what classical resources are required to simulate nonlocal quantum correlations. We start by constructing new local models for noisy entangled quantum states. These constructions exploit the connection between nonlocality and Grothendieck's inequality, first noticed by Tsirelson. Next, we consider local models augmented by a limited amount of classical communication. After generalizing Bell inequalities to this setting, we show that (i) one bit of communication is sufficient to simulate the correlations of projective measurements on a maximally entangled state of two qubits, and (ii) five bits of communication are sufficient to simulate the joint correlation of two-outcome measurements on any bipartite quantum state. The latter result can be interpreted as a stronger (constrained) version of Grothendieck's inequality. In part II, we investigate the monogamy of nonlocal correlations. In a setting where three parties, A, B, and C, share an entangled quantum state of arbitrary dimension, we: (i) bound the trade-off between AB's and AC's violation of the CHSH inequality, obtaining an intriguing generalization of Tsirelson's bound, and (ii) demonstrate that forcing B and C to be classically correlated prevents A and B from violating certain Bell inequalities. We study not only correlations that arise within quantum theory, but also arbitrary correlations that do not allow signaling between separate groups of parties. These results are based on new techniques for obtaining Tsirelson bounds, or bounds on the quantum value of a Bell inequality, and have applications to interactive proof systems and cryptography.</p