Interaction between different sources of situational probability information to anticipate the bowler’s intention in cricket
- Authors: Lilford, David-John
- Date: 2020
- Subjects: Cricket -- Bowling
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/46383 , vital:39578
- Description: In elite fastball sports, such as cricket, performance occurs at the limit of human capability as the time constraints of perceiving and acting are severe. Cricket batsmen are therefore required to use the two sources of advanced information (kinematic cues and situational probability) to anticipate an upcoming delivery to negate the effects of the time constraints. The source of information that will be focused on in this study will be situational probability, with the aim being to determine the interaction between bowling sequence and field placement as sources of situational probability used by skilled cricket batsmen to predict a bowler’s intention. Four different conditions were created according to the situational probability information presented to the batsmen, namely no sources, sequence alone, field placement alone, and both sources. Fifteen skilled cricket batsmen were required to face deliveries projected by a bowling machine and make predictions as to where the next delivery outcome was going to pitch based on perceived situational probability information and attempt to make successful bat-ball contact. In order to compare the use and importance of the four conditions of situational probability information,prediction accuracy, response accuracy and the initial movement time of the batsmen were recorded and analysed. Results of the study revealed no significant difference between conditions of situational probability presented to batsmen for prediction accuracy, response accuracy, and initial movement time. However, significant differences were found between categories of congruence for prediction accuracy results. The prediction accuracy results reveal that batsmen equally value each source of situational probability information and that when sources were presented in conjunction with each other, no enhancement in anticipatory performance or interception of the cricket ball occurred.The results of the current study suggest that it is not necessarily the number of sources present, but rather the relevance of the source that is most important for a batsman to predict the outcome of a delivery. The prediction accuracy of batsmen is dependent on the nature of the information presented rather than the amount of information presented. Performers draw upon more pertinent information variables according to the relevance to the task at hand.The response accuracy results reveal that the batsmen have the required action capabilities to make successful bat-ball contact regardless of whether or not they correctly anticipate the upcoming delivery’s landing position.
- Full Text:
- Date Issued: 2020
Factors relating to academic success in the first semester of the bachelor of pharmacy degree at NMMU
- Authors: Nagel, Timothy Shaun
- Date: 2017
- Subjects: Pharmacy -- Study and teaching , College students -- South Africa Academic achievement
- Language: English
- Type: Thesis , Masters , MPharm
- Identifier: http://hdl.handle.net/10948/14201 , vital:27446
- Description: Student throughput rates and academic achievement at universities are a concern at a national level in South Africa. Statistics have shown that on average, only ±17% of students who enrolled at a university, managed to graduate. The aim of the study was to determine the factors pertaining to student achievement and success in the first semester of the first year Bachelor of Pharmacy degree at the Nelson Mandela Metropolitan University. This study was a longitudinal, observational study which incorporated only quantitative aspects. Factors included in the investigation were: student motivation; learning styles; prior academic achievement; language use and sources of financial support. In order to determine student motivation, an Academic Motivation Scale (AMS) was used. Learning styles were assessed using a Kolb Learning Style Inventory (LSI) tool. The student’s National Senior Certificate (NSC) results were compared to the students 2016 semester one final marks, to correlate student readiness and prior academic achievement with current academic achievement. Home language and sources of financial support were also evaluated using a purpose-designed questionnaire. Results showed that only the Life Sciences module was practically and statistically significant as a predictor of academic success, with a p-value of .001 and a correlation coefficient |r| value of .369. The minimum entry requirements for the BPharm Degree do not include Life Science, however, based on this study, inclusion of Life Sciences at a specific achievement level should be considered.
- Full Text:
- Date Issued: 2017