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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. - PowerPoint PPT Presentation
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Applied Applied BiostatistiBiostatistics cs
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
PROPOSAL PRESENTATION
GRO
UP
5 M
EMBE
RSG
ROU
P 5
MEM
BERS
AIMI SYAMIMA BT. ABDUL MANAP A123309CHIANG HUI HUI A123070CHOW SI YEE A123170MUHAMMAD NURHAKIM B. MISWAN A123533MUNIRAH BT. AHMAD MUNAWAR A123575NOR IZHAN BIN YANG GHAZALI A123653RAMANAESH RAO A/L RAMAKRISHNA A123419WINNIE HII LIN LIN A122995WONG CHOON XIAN A123234YAP HUI CIN A123456YONG MEI CHIT A122572
SUPERVISOR: CIK NURUL FARHANA
IntroductioIntroductionn
~a non-unitary model of short-term memory that constitutes:
Central Executive
Phonological loop(speech-based information) Visuo-spatial sketch pad
(visual and spatial information)
(Michael Grimley and Gloria Banner et al. 2007).
1. 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)
2. 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)
FactoFactorr
1. GENDER
- female is better at recall for objects. (Beck, L. et al 2007)
2. AGE
- older person have a decreased in memory. (Pilar
Andres et al. 2004)
3. 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)
FactoFactorr4. 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)
5. SUPPLEMENT INTAKE
-nutrient and supplement antioxidants were selected for
their efficacy in the cognitive. (Carol M. Baldwin et al., 2005)
6. ACADEMIC PERFORMANCE (CGPA)
- high working memory, high CGPA.
(Michael Grimley et al. 2007)
YES!
RESEARCH RESEARCH JUSTIFICATIONJUSTIFICATION
•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.
RESEARCH RESEARCH QUESTIONQUESTION
Is there any association between working memory and
academic performance in UKM second year and third year
Biomedical Science, Nutrition and Environmental Health
students?
HYPOTHESIHYPOTHESISS
There is an association between working memory and
academic performance (CGPA) among UKM Biomedical
Science, Nutrition and Environmental Health students.
GENERAL GENERAL OBJECTIVEOBJECTIVE
SPECIFIC SPECIFIC OBJECTIVESOBJECTIVES
1) To determine the percentage working memory of
between years, course and gender.
2) 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.
SPECIFIC SPECIFIC OBJECTIVESOBJECTIVES
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.
Conceptual Conceptual FrameworkFramework
Academic Performance
(CGPA)
Working Memory
Gender (Male/Female)
Supplement Intake
Memorizing Techniques
Sleeping hour
Year/Course(2nd/3rd)
Course(Biomed/
Nutrition/EVH)
Study Style
Research Design
Our research involves cross sectional study. Questionnaire will be used for survey research.
METHODOLOGY
Target Population
Undergraduate students from National University of Malaysia Campus Kuala Lumpur.
Undergraduate students from Faculty of Health Sciences National University of Malaysia Campus Kuala Lumpur.
Sampling Method
Stratified random sampling method will be used to select the sample population.
METHODOLOGY
Sample Frame
Second and third year students from Biomedical Science, Nutrition and Environmental HealthTotal amount of students: 310 persons
Sample UnitIndividual (s)
METHODOLOGY
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.
METHODOLOGYInclusion 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.
METHODOLOGY
Sample SizeStratified Sampling
n =
D= (estimating μ)4
2B
22
22
ii
i
ii
NDNwN
METHODOLOGY
Sampling SizeSystemic Sampling for each strata
n =
D =
2
2
)1(
DNN
4
2B
QuestionnaireThere are 3 parts in the questionnaire:
Part A : Demographic factors
Part B :Visual Working memory test and
Arithmetic test
Part C :Opinions
MATERIAL
Objective Dependent variables
Independent variables Test(s)
To determine the percentage of
working memory between years,
course and gender.
Working Memory score
(Numerical)
Years*Second*Third
(Nominal)
Descriptive test
Course*Biomedical
Science*Nutrition
*Environmental Health
(Nominal)
Gender*Female*Male
(Nominal)
Statistical Statistical analysisanalysis
Objective Dependent variables
Independent variables Test(s)
To compare the average of working memory between years, course and
gender.
Working Memory score
(Numerical)
Years*Second*Third
(Nominal)
Independent t test Or
Mann Whitney Test
Course*Biomedical
Science*Nutrition
*Environmental Health
(Nominal)
ANOVA Or
Kruskal Wallis Test
Gender*Female*Male
(Nominal)
independent t testOr
Mann Whitney Test
Statistical Statistical analysisanalysis
Objective Dependent variables
Independent variables Test(s)
To compare the average of working memory between
supplement intake, memorizing
technique and study style.
Working Memory score
(Numerical)
Supplement intake
(Numerical)
Independent t test Or
Mann Whitney Test
Memorizing technique
(Numerical)
ANOVA Or
Kruskal Wallis Test
Study style(Numerical)
ANOVA Or
Kruskal Wallis Test
Statistical Statistical analysisanalysis
Statistical Statistical analysisanalysis
Objective Dependent variables
Independent variables Test(s)
To determine the association between working memory and
sleep hours.
Working Memory
score(Numerical)
Sleep hours(Numerical)
Pearson Correlation
Or Spearman Correlation
To determine the strength association between CGPA and
working memory
Working Memory
score(Numerical)
CGPA(Numerical)
Pearson Correlation
Or Spearman Correlation
Gannt chartGannt chart
QuestionnairQuestionnairee
Part 1 : Demographic factors
1. Gender2. Year3. Course4. CGPA
Part 2: Visual and Verbal Word Span Test
Section 1 :Visual test
Section 2 : Arithmetic test
QuestionnaiQuestionnairere
QuestionnaiQuestionnairere Part 3 : Opinions
Supplement takingMemorizing techniqueSleeping hoursStudy style
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.
QuestionnaiQuestionnairere
REFERENCEREFERENCE 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.
THANK THANK YOUYOU
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