3 Aims and Objectives At teh end of this presentation, the participants should be aware of basic research methodology and be equipped with the information to conduct a research. Objectives –List stages of a research –Ask a clinically answerable question –Classify types of data –Count basic hypothesis tests and their usage –Define types of study designs
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/ 221 Prof. Zekeriya Aktrk , Sanaa Research Methodology and
Practical Biostatistics Using SPSS - Introduction - / 222 3 Aims
and Objectives At teh end of this presentation, the participants
should be aware of basic research methodology and be equipped with
the information to conduct a research. Objectives List stages of a
research Ask a clinically answerable question Classify types of
data Count basic hypothesis tests and their usage Define types of
study designs / 224 Let us do a research together Statistics course
participants and reasearch Aktrk Z. Sanaa, February 25, 2011 / 225
One literature Askew, DA. et al. GPs involvement in and attitudes
to research. Med J Aust 2002;177(2):74-77 / 226 Stages of a
research 1.Ask an answerable question 2.Is the question already
answered? 3.Formulate hypothesis 4.Decide on the method
5.Application 6.Analysis 7.Interpret results 8.Write report Tyler
CW, Epidemyology / 227 Most important: Ideas My research logbook
IdeaMethodApplicationReporting 1.Usage of herbal medicine among
public 2.Effect of constipation on cognitive functions 3. 1.Medical
specialization training in Turkey The effect of structured exercise
on weight loss 2.Developing a national EMR database Prevalence of
osteoporosis in Edirne 2.Knowledge of herbs by medical students 3..
/ 228 Answerable clinical question Patient/problem Intervention
Comparison Outcomes Is there a difference between a calorie diet
and a glycemic diet in decreasing the body mass index of obese
patients? Centre for EBM / 229 Formulating the hypothesis H 0 There
is no difference between a calorie diet and a glycemic diet in
decreasing the body mass index of obese patients. H 1 There is a
significant difference between a calorie diet and a glycemic diet
in decreasing the body mass index of obese patients. / 2210 Study
designs (How to answer the question?) Observation Case report
Prevalence Case control Cohort studies Intervention Randomized
controlled studies Methodological Reliability-Validity
Sensiivity-Specifity Case-Control Study 11/ 22 Cohort study 12/ 22
RCT 13/ 22 Analysis Data types / 2214 / 2215 Choosing the correct
test / 2216 / 2217 Question Is there any significant difference
between class 1 and class 6 medical students in recognising thyme?
/ 2218 Hypothesis H 0 : There is no significant difference between
class 1 and class 6 medical students in recognising thyme? H 1 :
There is significant difference between class 1 and class 6 medical
students in recognising thyme? / 2219 Method Showing the picture of
thyme plant to class 1 and class 6 medical students and asking
whether they recognize it Analysis - Frequencies / 2220 Analysis
Hypothesis test / 2221 / 2222 Interpretation While 12% of class 1
students recognized thyme, this was 78% in class 6 Although class 6
students are better in recognizing thyme, even among them 22%
failed. There is a significant difference between class 1 and class
6 medical students in recognizing the picture of thyme (p
