The Experts below are selected from a list of 318 Experts worldwide ranked by ideXlab platform
M Smith - One of the best experts on this subject based on the ideXlab platform.
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Association between visual reaction time and Batting, fielding, and earned run Averages among players of the Southern Baseball League
Journal of the American Optometric Association, 1997Co-Authors: L P Semes, Kent M. Daum, R Nowakowski, L J Alexander, John Wisniewski, J A Beisel, K Mann, Robert P. Rutstein, M SmithAbstract:Background This study was performed to investigate the relationship between vision reaction time (VRT) and Batting, fielding, and pitching skill in baseball. Methods A vision screening of 213 professional baseball players in the Southern Baseball League was performed, and the visual reaction times of these players were determined. Official Southern Baseball League statistics were consulted to obtain the players' Batting Average, fielding Average, and earned run Average. Results The mean visual reaction time for all players was 239 msec. There was no significant association between mean VRT and age or race. The mean VRT for dominant eyes was not significantly different from the mean VRT for nondominant eyes. For the 92 players who batted at least 100 times, an association was found between mean VRT and Batting Average (p = 0.017). For the 168 fielders in the league playing at least 20 games, no statistically significant association was found between mean VRT and fielding Average. Similarly, no association was found between mean VRT and earned run Average for the B8 pitchers who had participated in more than 20 games. Conclusions An association was found between visual reaction time and Batting skill in baseball. No association was found between visual reaction time and fielding or pitching skill.
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Association between eye and hand dominance and hitting, fielding and pitching skill among players of the Southern Baseball League.
Journal of the American Optometric Association, 1996Co-Authors: Kent M. Daum, L P Semes, L J Alexander, John Wisniewski, J A Beisel, K Mann, Robert P. Rutstein, Nawakowski R, M SmithAbstract:Background The relationship between eye dominance and Batting skill in baseball has been investigated, but conflicting results have been obtained In addition, little attention has been given to the relationship, if any, between eye dominance and fielding and pitching skill. Methods A vision screening of 215 professional baseball players in the Southern Baseball League was performed and the eye dominance of these players was determined by a sighting test. Handedness for Batting, fielding, and pitching was determined by history. Results The screening revealed that 66 percent of players were right-eye dominant and that, of 92 players who met the criteria established to qualify for the league Batting championship, 60 percent had matched dominance of eye and hand. When official league Batting Averages were obtained for these 92 players, it it was found that there was no statistically significant difference between batters with matched dominance (.278 mean Batting Average) and players with crossed dominance (.283 mean Batting Average). For the 149 fielders in the league, no statistically significant differences based on eye dominance were found for fielding Average (.893 matched dominance,.864 crossed dominance); for the 89 pitchers, a similar result was obtained. Pitchers were also evaluated with respect to eye dominance and earned run Average, but no significant difference was found (3.91 matched dominance, 4.03 crossed dominance). Conclusion Results indicate that there is no association between eye dominance, and hitting, fielding, or pitching skill in baseball.
Brian T. Ratchford - One of the best experts on this subject based on the ideXlab platform.
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Winter Simulation Conference - Energy production and trading: Batting Average: a composite measure of risk for assessing product differentiation in a simulation model
2002Co-Authors: D.m. Hamblin, Brian T. RatchfordAbstract:The paper simulates how market power affects electricity retailing to households. A pseudo-random number seeding algorithm creates representative product differentiation in repeated drawings, for an incumbent and seven challengers. A ninth player competitor decides how to distinguish her product. The simulation creates an efficient starting market, adjusted for competitor dominance; and, over a 12-month horizon, uses topology to develop unexploited profit opportunities for all competitors. A best solution criterion punishes nonconformists. Results of repeated drawings varying opposition to the player's constant product differentiation feed a Batting Average risk assessment. Decision rules reward hits based on profit and year's end market share. The market simulation tool supports conjectural assessment of social policy - household direct access to wholesale power, incentive for product differentiation versus that for mergers and acquisitions, and allocation of deregulation benefits to shareholders versus ratepayers.
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energy production and trading Batting Average a composite measure of risk for assessing product differentiation in a simulation model
Winter Simulation Conference, 2002Co-Authors: D.m. Hamblin, Brian T. RatchfordAbstract:The paper simulates how market power affects electricity retailing to households. A pseudo-random number seeding algorithm creates representative product differentiation in repeated drawings, for an incumbent and seven challengers. A ninth player competitor decides how to distinguish her product. The simulation creates an efficient starting market, adjusted for competitor dominance; and, over a 12-month horizon, uses topology to develop unexploited profit opportunities for all competitors. A best solution criterion punishes nonconformists. Results of repeated drawings varying opposition to the player's constant product differentiation feed a Batting Average risk assessment. Decision rules reward hits based on profit and year's end market share. The market simulation tool supports conjectural assessment of social policy - household direct access to wholesale power, incentive for product differentiation versus that for mergers and acquisitions, and allocation of deregulation benefits to shareholders versus ratepayers.
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Batting Average: a composite measure of risk for assessing product differentiation in a simulation model
Proceedings of the Winter Simulation Conference, 1Co-Authors: D.m. Hamblin, Brian T. RatchfordAbstract:The paper simulates how market power affects electricity retailing to households. A pseudo-random number seeding algorithm creates representative product differentiation in repeated drawings, for an incumbent and seven challengers. A ninth player competitor decides how to distinguish her product. The simulation creates an efficient starting market, adjusted for competitor dominance; and, over a 12 month horizon, uses topology to develop unexploited profit opportunities for all competitors. A best solution criterion punishes nonconformists. Results of repeated drawings varying opposition to the player's constant product differentiation feed a Batting Average risk assessment. Decision rules reward hits based on profit and year's end market share. The market simulation tool supports conjectural assessment of social policy-household direct access to wholesale power, incentive for product differentiation versus that for mergers and acquisitions, and allocation of deregulation benefits to shareholders versus ratepayers.
L P Semes - One of the best experts on this subject based on the ideXlab platform.
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Association between visual reaction time and Batting, fielding, and earned run Averages among players of the Southern Baseball League
Journal of the American Optometric Association, 1997Co-Authors: L P Semes, Kent M. Daum, R Nowakowski, L J Alexander, John Wisniewski, J A Beisel, K Mann, Robert P. Rutstein, M SmithAbstract:Background This study was performed to investigate the relationship between vision reaction time (VRT) and Batting, fielding, and pitching skill in baseball. Methods A vision screening of 213 professional baseball players in the Southern Baseball League was performed, and the visual reaction times of these players were determined. Official Southern Baseball League statistics were consulted to obtain the players' Batting Average, fielding Average, and earned run Average. Results The mean visual reaction time for all players was 239 msec. There was no significant association between mean VRT and age or race. The mean VRT for dominant eyes was not significantly different from the mean VRT for nondominant eyes. For the 92 players who batted at least 100 times, an association was found between mean VRT and Batting Average (p = 0.017). For the 168 fielders in the league playing at least 20 games, no statistically significant association was found between mean VRT and fielding Average. Similarly, no association was found between mean VRT and earned run Average for the B8 pitchers who had participated in more than 20 games. Conclusions An association was found between visual reaction time and Batting skill in baseball. No association was found between visual reaction time and fielding or pitching skill.
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Association between eye and hand dominance and hitting, fielding and pitching skill among players of the Southern Baseball League.
Journal of the American Optometric Association, 1996Co-Authors: Kent M. Daum, L P Semes, L J Alexander, John Wisniewski, J A Beisel, K Mann, Robert P. Rutstein, Nawakowski R, M SmithAbstract:Background The relationship between eye dominance and Batting skill in baseball has been investigated, but conflicting results have been obtained In addition, little attention has been given to the relationship, if any, between eye dominance and fielding and pitching skill. Methods A vision screening of 215 professional baseball players in the Southern Baseball League was performed and the eye dominance of these players was determined by a sighting test. Handedness for Batting, fielding, and pitching was determined by history. Results The screening revealed that 66 percent of players were right-eye dominant and that, of 92 players who met the criteria established to qualify for the league Batting championship, 60 percent had matched dominance of eye and hand. When official league Batting Averages were obtained for these 92 players, it it was found that there was no statistically significant difference between batters with matched dominance (.278 mean Batting Average) and players with crossed dominance (.283 mean Batting Average). For the 149 fielders in the league, no statistically significant differences based on eye dominance were found for fielding Average (.893 matched dominance,.864 crossed dominance); for the 89 pitchers, a similar result was obtained. Pitchers were also evaluated with respect to eye dominance and earned run Average, but no significant difference was found (3.91 matched dominance, 4.03 crossed dominance). Conclusion Results indicate that there is no association between eye dominance, and hitting, fielding, or pitching skill in baseball.
Kent M. Daum - One of the best experts on this subject based on the ideXlab platform.
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Association between visual reaction time and Batting, fielding, and earned run Averages among players of the Southern Baseball League
Journal of the American Optometric Association, 1997Co-Authors: L P Semes, Kent M. Daum, R Nowakowski, L J Alexander, John Wisniewski, J A Beisel, K Mann, Robert P. Rutstein, M SmithAbstract:Background This study was performed to investigate the relationship between vision reaction time (VRT) and Batting, fielding, and pitching skill in baseball. Methods A vision screening of 213 professional baseball players in the Southern Baseball League was performed, and the visual reaction times of these players were determined. Official Southern Baseball League statistics were consulted to obtain the players' Batting Average, fielding Average, and earned run Average. Results The mean visual reaction time for all players was 239 msec. There was no significant association between mean VRT and age or race. The mean VRT for dominant eyes was not significantly different from the mean VRT for nondominant eyes. For the 92 players who batted at least 100 times, an association was found between mean VRT and Batting Average (p = 0.017). For the 168 fielders in the league playing at least 20 games, no statistically significant association was found between mean VRT and fielding Average. Similarly, no association was found between mean VRT and earned run Average for the B8 pitchers who had participated in more than 20 games. Conclusions An association was found between visual reaction time and Batting skill in baseball. No association was found between visual reaction time and fielding or pitching skill.
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Association between eye and hand dominance and hitting, fielding and pitching skill among players of the Southern Baseball League.
Journal of the American Optometric Association, 1996Co-Authors: Kent M. Daum, L P Semes, L J Alexander, John Wisniewski, J A Beisel, K Mann, Robert P. Rutstein, Nawakowski R, M SmithAbstract:Background The relationship between eye dominance and Batting skill in baseball has been investigated, but conflicting results have been obtained In addition, little attention has been given to the relationship, if any, between eye dominance and fielding and pitching skill. Methods A vision screening of 215 professional baseball players in the Southern Baseball League was performed and the eye dominance of these players was determined by a sighting test. Handedness for Batting, fielding, and pitching was determined by history. Results The screening revealed that 66 percent of players were right-eye dominant and that, of 92 players who met the criteria established to qualify for the league Batting championship, 60 percent had matched dominance of eye and hand. When official league Batting Averages were obtained for these 92 players, it it was found that there was no statistically significant difference between batters with matched dominance (.278 mean Batting Average) and players with crossed dominance (.283 mean Batting Average). For the 149 fielders in the league, no statistically significant differences based on eye dominance were found for fielding Average (.893 matched dominance,.864 crossed dominance); for the 89 pitchers, a similar result was obtained. Pitchers were also evaluated with respect to eye dominance and earned run Average, but no significant difference was found (3.91 matched dominance, 4.03 crossed dominance). Conclusion Results indicate that there is no association between eye dominance, and hitting, fielding, or pitching skill in baseball.
John Wisniewski - One of the best experts on this subject based on the ideXlab platform.
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Association between visual reaction time and Batting, fielding, and earned run Averages among players of the Southern Baseball League
Journal of the American Optometric Association, 1997Co-Authors: L P Semes, Kent M. Daum, R Nowakowski, L J Alexander, John Wisniewski, J A Beisel, K Mann, Robert P. Rutstein, M SmithAbstract:Background This study was performed to investigate the relationship between vision reaction time (VRT) and Batting, fielding, and pitching skill in baseball. Methods A vision screening of 213 professional baseball players in the Southern Baseball League was performed, and the visual reaction times of these players were determined. Official Southern Baseball League statistics were consulted to obtain the players' Batting Average, fielding Average, and earned run Average. Results The mean visual reaction time for all players was 239 msec. There was no significant association between mean VRT and age or race. The mean VRT for dominant eyes was not significantly different from the mean VRT for nondominant eyes. For the 92 players who batted at least 100 times, an association was found between mean VRT and Batting Average (p = 0.017). For the 168 fielders in the league playing at least 20 games, no statistically significant association was found between mean VRT and fielding Average. Similarly, no association was found between mean VRT and earned run Average for the B8 pitchers who had participated in more than 20 games. Conclusions An association was found between visual reaction time and Batting skill in baseball. No association was found between visual reaction time and fielding or pitching skill.
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Association between eye and hand dominance and hitting, fielding and pitching skill among players of the Southern Baseball League.
Journal of the American Optometric Association, 1996Co-Authors: Kent M. Daum, L P Semes, L J Alexander, John Wisniewski, J A Beisel, K Mann, Robert P. Rutstein, Nawakowski R, M SmithAbstract:Background The relationship between eye dominance and Batting skill in baseball has been investigated, but conflicting results have been obtained In addition, little attention has been given to the relationship, if any, between eye dominance and fielding and pitching skill. Methods A vision screening of 215 professional baseball players in the Southern Baseball League was performed and the eye dominance of these players was determined by a sighting test. Handedness for Batting, fielding, and pitching was determined by history. Results The screening revealed that 66 percent of players were right-eye dominant and that, of 92 players who met the criteria established to qualify for the league Batting championship, 60 percent had matched dominance of eye and hand. When official league Batting Averages were obtained for these 92 players, it it was found that there was no statistically significant difference between batters with matched dominance (.278 mean Batting Average) and players with crossed dominance (.283 mean Batting Average). For the 149 fielders in the league, no statistically significant differences based on eye dominance were found for fielding Average (.893 matched dominance,.864 crossed dominance); for the 89 pitchers, a similar result was obtained. Pitchers were also evaluated with respect to eye dominance and earned run Average, but no significant difference was found (3.91 matched dominance, 4.03 crossed dominance). Conclusion Results indicate that there is no association between eye dominance, and hitting, fielding, or pitching skill in baseball.
