Beyond Scope of Practice: Inferring High School Tennis Coaches' Behavior from their Nutrition and Eating Disorder Knowledge

The primary purpose of this study was to assess high school tennis coaches’ knowledge of macronutrients and disordered eating (e.g., etiology). Other purposes included identifying confidence in knowledge and any differences between the participating coaches’ knowledge and demographic variables. To address these purposes, the 27-question Nutrition and Eating Disorders in Tennis (“NET”) Survey was created. The study design involved a one-time voluntary assessment of the Indiana coaches’ demographic variables, knowledge, sources of knowledge, and level of confidence (e.g., Not At All or Very Confident). Overall, the results revealed that the coaches lacked knowledge. The average score was 70.6%, which was below the criterion for adequate knowledge. Furthermore, the coaches lacked adequate knowledge in three of the five knowledge domains: Treatment and Prevention of Disordered Eating (63.6% ± 22.9%), Disordered Eating Signs and Symptoms (60.0% ± 21.7%), and Macronutrients (57.0% ± 22.4%). There were no significant differences between coaches’ education level, gender, or type and knowledge. However, there was in experience; the more years coached, the lower the scores. Finally, there was a trend of overconfidence in answers

Spherical Displays: Technology and Visualization

IU's Cyberinfrastructure Building is home to the 97th installation of the National Oceanic and Atmospheric Administration's Science On a Sphere(SoS). The presentation discusses how the Advanced Visualization Lab uses spherical display technology to present visualizations on a wide range of data, including oceanographic, atmospheric, astronomical, political, and economic.

Experiences in Higher Education with SOS

Talk presented at the December 2, 2015 SOS Users Collaborative Network Meeting in Portland, Oregon.Staff from Indiana University's Advanced Visualization Lab will present lessons learned from our initial 2.5 years supporting the use of SOS for research, education, and creative activity. We will discuss the challenges and opportunities of hosting SOS at a research university and then detail unique development efforts that go beyond traditional science. Such efforts include our use of real-time Google Analytics, streamgraphs for time-based visualizations, spherical panoramas, and art exhibits

Investigation of Indiana tennis coaches' knowledge of disordered eating and nutrition and their confidence in such knowledge

Indiana University-Purdue University Indianapolis (IUPUI)It is well documented that a variety of sports coaches lack nutrition knowledge. However, few studies explore their knowledge of appropriate weight loss methods, macronutrient intake, or disordered eating. Unfortunately, both college and high school coaches disseminate inaccurate nutrition and weight loss counsel to their respective athletes who are just as unknowledgeable. Further, there is little research, which only focuses on coaches of a specific sport (e.g. tennis). Thus, the primary purpose of this study was to assess high school tennis coaches' knowledge of macronutrients and disordered eating (e.g. symptoms and prevention). Other purposes included identifying confidence in knowledge and any differences between the participating coaches' knowledge and demographic variables. To address these purposes, the 27-question Nutrition and Eating Disorders in Tennis ("NET") Survey was created (and validated). The study design involved a one-time, voluntary assessment of the Indiana coaches' demographic variables, knowledge, sources of knowledge, and level of confidence (e.g. Not At All or Very Confident). Overall, the results revealed that the coaches lacked knowledge. The average score was 70.6%, which was below the criterion for adequate knowledge. Furthermore, the coaches lacked adequate knowledge in three of the five knowledge domains: Treatment and Prevention of Disordered Eating (63.6% ± 22.9%), Disordered Eating Signs and Symptoms (60.0% ± 21.7%), and Macronutrients (57.0% ± 22.4%). The latter was further substantiated through the responses to scenario questions (Part 3). Specifically, the tennis coaches demonstrated a significant knowledge deficiency of carbohydrates, energy needs, and appropriate scope of practice. There was no significant difference between coaches' education level, gender, or type and knowledge. However, there was in experience; the more years coached, the lower the scores. Moreover, there was a trend of overconfidence in the most missed questions. This dissertation's data can provide basis for coaches' educational programs

Wait Line Behaviors at Restaurants during COVID-19

We were assigned to do field work observations through a series of individual data collection sessions. My group member and I choose to do observations at restaurants to see how covid has impacted waiting in line due to their facility reaching capacity. We each chose different locations to observe and collect data. Within this research project, we were able to identify different behaviors of people waiting. Some people were patient, kind, and courteous while other’s were impatient and rude. These observations were made by each observer at these different locations

Estimating Operational Validity Under Incidental Range Restriction: Some Important but Neglected Issues

Operational validities are important to personnel selection research because they estimate how well a predictor in practical use correlates with a criterion construct, if the criterion measure were purged of measurement error variance. Because range restriction on a predictor or predictor composite creates incidental range restriction on the criterion, existing methodologies offer limited information and guidance for estimating operational validities. Although these effects of range restriction and criterion unreliability could be corrected with existing equations in a sequential fashion, proper use of sequential correction equations is not always as straightforward as it appears. This research reviews the existing equations for correcting validities, outlines the appropriate method for correcting validity coefficients via sequential equations, and proposes a new equation that performs a combined correction for the effects of incidental range restriction and criterion unreliability. Accessed 1,910 times on https://pareonline.net from August 06, 2017 to December 31, 2019. For downloads from January 1, 2020 forward, please click on the PlumX Metrics link to the right

Game story space of professional sports: Australian rules football

Sports are spontaneous generators of stories. Through skill and chance, the script of each game is dynamically written in real time by players acting out possible trajectories allowed by a sport\u27s rules. By properly characterizing a given sport\u27s ecology of game stories, we are able to capture the sport\u27s capacity for unfolding interesting narratives, in part by contrasting them with random walks. Here we explore the game story space afforded by a data set of 1310 Australian Football League (AFL) score lines. We find that AFL games exhibit a continuous spectrum of stories rather than distinct clusters. We show how coarse graining reveals identifiable motifs ranging from last-minute comeback wins to one-sided blowouts. Through an extensive comparison with biased random walks, we show that real AFL games deliver a broader array of motifs than null models, and we provide consequent insights into the narrative appeal of real games

Laughter and effective presidential leadership: A case study of Ronald Reagan as the 'great communicator'

Former United States President Ronald Reagan’s use of media and his charismatic connection with viewers earned him the moniker “the great communicator”. One aspect of his charisma, the influence of elicited laughter, during a highly critical 5-minute news story by CBS reporter Leslie Stahl during the 1984 US presidential election is examined here. Two experiments examining the effects of audience laughter on perceptions of charismatic leadership are reported. In the first experiment the effects of audience laughter in response to Reagan’s comments were investigated. Here, Reagan’s perceived warmth as an effective leader significantly diminished when strong laughter is removed, whereas perceptions of competence remained unaffected. The second study carried out on an older cohort replicated and extended the first in a pre-registered design by considering the perception of trait charisma. Here, the presence or absence of audience laughter did not affect judgements of charisma. Additionally, the affective response before, and then after, the presentation of the news story was measured. Emotions associated with a positive appraisal all decreased after being shown the news story while emotions associated negative appraisal all increased. However, only participant anger was significantly increased when audience laughter was removed. Taken together the findings of both studies converge on the fact that subtle changes in media presentation of political leaders can have a significant effect on viewers. The findings show that even after 40 years in office the social psychological effects of presidential charisma can still influence observers

The state of the Martian climate

60°N was +2.0°C, relative to the 1981–2010 average value (Fig. 5.1). This marks a new high for the record. The average annual surface air temperature (SAT) anomaly for 2016 for land stations north of starting in 1900, and is a significant increase over the previous highest value of +1.2°C, which was observed in 2007, 2011, and 2015. Average global annual temperatures also showed record values in 2015 and 2016. Currently, the Arctic is warming at more than twice the rate of lower latitudes