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Applied Biostatistics

Applied Biostatistics. Proposal presentation. TITLE: ASSOCIATION BETWEEN WORKING MEMORY AND ACADEMIC PERFORMANCE OF NATIONAL UNIVERSITY OF MALAYSIA BIOMEDICAL SCIENCE, NUTRITION AND ENVIRONMENTAL HEALTH STUDENTS YEAR 2 - 3 SESSION 2010/2011. Supervisor: CIK NURUL FARHANA.

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Applied Biostatistics

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  1. Applied Biostatistics Proposal presentation TITLE: ASSOCIATION BETWEEN WORKING MEMORY AND ACADEMIC PERFORMANCE OF NATIONAL UNIVERSITY OF MALAYSIA BIOMEDICAL SCIENCE, NUTRITION AND ENVIRONMENTAL HEALTH STUDENTS YEAR 2 - 3 SESSION 2010/2011

  2. Supervisor: CIK NURUL FARHANA AIMI SYAMIMA BT. ABDUL MANAP A123309 CHIANG HUI HUI A123070 CHOW SI YEE A123170 MUHAMMAD NURHAKIM B. MISWAN A123533 MUNIRAH BT. AHMAD MUNAWAR A123575 NOR IZHAN BIN YANG GHAZALI A123653 RAMANAESH RAO A/L RAMAKRISHNA A123419 WINNIE HII LIN LIN A122995 WONG CHOON XIAN A123234 YAP HUI CIN A123456 YONG MEI CHIT A122572 Group 5 members

  3. Introduction WHAT IS WORKING MEMORY? ~a non-unitary model of short-term memory that constitutes: Phonological loop (speech-based information) Central Executive Visuo-spatial sketch pad (visual and spatial information) (Michael Grimley and Gloria Banner et al. 2007).

  4. VERBAL WORKING MEMORY • use sound to test the memory of one individual. • calculated as the set size where the • participant could recall the last words in • three out of the five sets. • (Geiger John F. et al , 2005) • VISUAL WORKING MEMORY • concerned with the way in which information is whether represented by images.(Grimley M. et al. 2007) • Visual appearance, including dynamic aspects is represented as features and object files (bound features).(Hubert D. Zimmer, 2008)

  5. Factor • GENDER • - female is better at recall for objects. (Beck, L. et al 2007) • AGE • - older person have a decreased in memory. (Pilar Andres et al. 2004) • SLEEP HOURS • -Working memory scanning speed improved over a 9 day period in participants who were given an 8 hour sleep period per night. (Melynda D. Casement et al., 2005)

  6. Factor MEMORIZING TECHNIQUES - good memorizers often use mnemonics techniques to organize, remember and recall large amounts of visual and verbal memories. (Mijail Demian Serruya et al., 2008) SUPPLEMENT INTAKE -nutrient and supplement antioxidants were selected for their efficacy in the cognitive. (Carol M. Baldwin et al., 2005) ACADEMIC PERFORMANCE (CGPA) - high working memory, high CGPA. (Michael Grimley et al. 2007) YES!

  7. RESEARCH JUSTIFICATION • To acknowledge the importance of working memory in order to obtain better academic performance. • Studies indicate that the complex processing required in Mathematic and Science constrains the educational attainment with low working memory. (Michael Grimley, 2007) • Thus, our research can reveal the power of working memory will assist Health Science students to excel in their academy.

  8. RESEARCH QUESTION Is there any association between working memory and academic performance in UKM second year and third year Biomedical Science, Nutrition and Environmental Health students? HYPOTHESIS There is an association between working memory and academic performance (CGPA) among UKM Biomedical Science, Nutrition and Environmental Health students.

  9. GENERAL OBJECTIVE To study the relationship between the power of working memory and academic performance (CGPA) among UKM Biomedical Science, Nutrition and Environmental Health students Year 2 and 3 session 2010/2011.

  10. SPECIFIC OBJECTIVES • To determine the percentage working memory of between years, course and gender. • To compare the average of working memory between years, course and gender. 3) To compare the average of working memory between supplement intake. 4) To compare the average of working memory between memorizing techniques.

  11. SPECIFIC OBJECTIVES 5) To compare the average of working memory between study styles. 6) To determine the association between working memory and sleep hours. 7) To determine the association between CGPA and working memory.

  12. Conceptual Framework Sleeping hour Memorizing Techniques Supplement Intake Year/Course (2nd/3rd) Study Style Course (Biomed/ Nutrition/EVH) Gender (Male/Female) Working Memory AcademicPerformance (CGPA)

  13. METHODOLOGY ResearchDesign Our research involves cross sectional study. Questionnaire will be used for survey research. Target Population Undergraduate students from National University of Malaysia Campus Kuala Lumpur. Study Population Undergraduate students from Faculty of Health Sciences National University of Malaysia Campus Kuala Lumpur.

  14. METHODOLOGY Sampling Method Stratified random sampling method will be used to select the sample population. Sample Frame Second and third year students from Biomedical Science, Nutrition and Environmental Health Total amount of students: 310 persons Sample Unit Individual (s)

  15. METHODOLOGY METHODOLOGY Inclusion Criteria • Students in Biomedical Science, Nutrition and Environmental Health. • Students age 20 – 23 years old. • Second and third year students in Biomedical Science, Nutrition and Environmental Health. Exclusion Criteria • Biomedical Science students from Biostatistic Group 5. • Students age less than 20 or more than 23 years old. • First and fourth year students in Biomedical Science, Nutrition and Environmental Health.

  16. METHODOLOGY Sample Size Stratified Sampling n = D= (estimating μ)

  17. METHODOLOGY Sampling Size Systemic Sampling for each strata n = D =

  18. MATERIAL • Questionnaire • There are 3 parts in the questionnaire: Part A : Demographic factors Part B :Visual Working memory test and Arithmetic test Part C :Opinions

  19. Statistical analysis

  20. Statistical analysis

  21. Statistical analysis

  22. Statistical analysis

  23. Gannt chart

  24. Questionnaire Part 1 : Demographic factors 1. Gender 2. Year 3. Course 4. CGPA

  25. Questionnaire Part 2: Visual and Verbal Word Span Test • Section 1 :Visual test • Section 2 : Arithmetic test

  26. Questionnaire Part 3 : Opinions • Supplement taking • Memorizing technique • Sleeping hours • Study style

  27. Questionnaire Example: 1) Do you take any supplement to improve your memory in study? A. Yes, please state out:................... (eg. Vitamins, Scott’s oil) B. No, please proceed to question 3.

  28. REFERENCE • Grimley M., Banner G. 2007. Working memory, cognitive style, and behavioural predictors of GCSE exam success. Educational Psychology 28(3): 341 – 351. • Andres P., Linden M.V., Parmentier F.B. 2004. Directed forgetting in working memory: Age-related differences. Memory 12(2): 248 – 256. • Casement M.D., Broussard J.L., Mullington J.M., Press D.Z. 2005. The contribution of sleep to improvements in working memory scanning speed: A study of prolonged sleep restriction. Biological Psychology 11: 1-5. • Serruya M.D., Kahana M. J., 2008. Techniques and devices to restore cognition. Behavioural Brain Research 4:149-165. • Baldwin C. M., Bootzin R.R. , Schwenke D.C., Quan S.F., Antioxidant nutrient intake and supplements as potential moderators of cognitive decline and cardiovascular disease in obstructive sleep apnea. Sleep Medicine Reviews 9:459–476. • Zimmer H. D., 2008. Visual and spatial working memory: From boxes to networks. Neuroscience and Biobehavioral Reviews 32:1341-1395.

  29. THANK YOU

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