Russian Call Girls in Pune Tanvi 9907093804 Short 1500 Night 6000 Best call g...
Basic of scientific resarch dr. marwa zalat
1. Basics of Scientific
Research
البحث اساسياتالعلمى
Dr Marwa Zalat
Associate professor in Community,
Occupational and Environmental Medicine ,
Department
2. Course Objectives
By the end of this workshop you will be able to:
Identify basic of scientific research (research
problem, questions………etc.)
Know how to write a protocol or proposal
Identify components of research
Identify the different types of research study designs.
Recognize the different types of samples.
Identify tools of data collection
Identify tips for results, discussion and references
3. Research
• Is a systematic collection, analysis, interpretation of data to
answer certain question or solve a problem.
Session One: Introduction and Course
Overview
4. Objectives of scientific research:
1. Research is conducted to prove or disprove a
hypothesis.
2. To gain a better understanding of something,
learn new facts about something or to provide a
solution to a problem
3. Medical research is conducted to discover the
causes and risk factors of diseases, evaluate the
effectiveness of diagnostic tests, create treatments.
4. Identify knowledge , attitude, awareness toward
certain problem or topic, measure customer
satisfaction toward service
5. Do you Find Difficulty in Developing
Your Research Question?
ْمتجدنفكزج انٕصٕل ٗف ّصعٕتتحخٛح؟؟
6. Do you Find Difficulty in Developing Your Research
Question?
Use the concept Map…
A concept map is a brainstorming tool العصفالذهنى
used to help you generate ideas and think about the relationships among these ideas.
8. Protocol: A document that give the background, rational of the
research and describe objectives, design, methodology.
Proposal: is an initial sets of ideas for a research project,
which are supported by literature review, should be concise and
must address the question of what you plan to achieve, why you want
to and how you are going to do it. (grant, fund)
تعد ُٚفذ نى تحج يقتزح َّال انًستقثم تصٛغح
What is the difference between research protocol and
proposal?
9. Contents of Protocol:
1. Title
2. Researchers with their
positions, affiliations
(authors)
3. Introduction
4. Aim, objectives
5. Subjects/Material and
methods
6. References
The research protocol contains
all elements of research paper
except study results and their
discussion that will also provide
the backbone of the ultimate
research paper.
The successful protocol is clear and
precise, is easy to read, has a
detailed methodological section,
and is free of typographical and other
errors.
10. Principal components of the research proposal:
1.Title
2.Introduction:
(Statement of the problem/justification/hypotheses of the study).
3.Aim, Objectives
4.Literature of review
5.Methodology, Ethical considerations
6.Results, tables
7.Timeline
8.Budget
9.References
10.Appendices
11. Types of Research Problems
Basic Research نظريه /اساسية ابحاث
essential for the development of
theory
no immediate practical utility
Applied Research تطبيقية ابحاث
answer an immediate practical
problem
often apply the findings of basic
research
13. Essential components of research
ًٗانعه انثحج عُاصز
• 1- Title. العنوان
• 2- Introduction. الممدمة
• 3- Rationale and justification of problem البحث مبرر
• 4-Research question(s). البحث سؤال
• 5- Research hypothesis البحث فرضية
• 6- Aim and objectives. والخاصة العامة االهداف
• 7- Subjects and methods البيانات وجمع البحث طرق
• 8- Results النتائج
• 9- Discussion البحث منالشات
• 10- Conclusions and recommendation اوالتوصيات لخالصة
• 11- References المراجع
14. 1-Title
Should be accurate , clear and concise
Not too short, or too long (less than 20 words)
Not include abbreviation, unnecessary words
Be formulated well
(the fewest possible words that can describe
the contents of the paper, thesis or report).
It must be specific, stating:
-What? -Where? -Who? -When?
15. Different types of research title
1(العهوانالدلاليeIndicativ
ولكن البحث موضوع على يدللايعطيعلى دلالةوالاستهتاجات الهتائج
in controlling house flies atpesticideseffectiveness ofThe
different stages of their Development
2(العهوانبالمعلومات الغهيInformative
دلالة يعطيعلىوالاستهتاجات الهتائج
house flies only when applied at larvalcontrolsPesticides
stage
16. Different types of research title
3(العهوانسؤال ويئة علىQuestion
ويئة على يكونواضخ سؤال
How does pesticides affect house flies?
4(عهوانوفرعي رئيسيngSeries or Hangi
الموضوع نفس تخص أدرى ابحاث يوجد حيث وذلك
The effect of pesticides on house flies: The effectiveness of
organophosphate at the Adult stage
17. Example of hanging title
1) when giving prominence to numbers of cases
----gastroscopic diagnosis of chronic gastritis: An analysis of 800 cases.
2)when emphasizing on research methods
-----Congruence between teaching and learning self-care: pilot study.
3)when giving prominence to key points
----- Primary care medicine in crisis: toward reconstruction and renewal.
4)when trying to explain
-----Family health: A theoretical approach to nursing care
5)when bringing forward question and choice
-------Chronic abdominal pain: A surgical or psychiatric symptom?
18. • Supply Statement of the problem,
sufficient background information1
• State briefly what others have found2
• Be referenced and state clearly
objectives of the paper, not more than
one page
3
2- A Good Introduction should
19. 3- RATIONAL= justification of the study
• Why this study is important?
• Why it is needed?
• What is the gap in the scientific knowledge is going to
fill?
• Why we cannot solve the problem without this study?
20. 4- RESEARCH QUESTIONS
• A Research Question is a statement that identifies the phenomenon
to be studied.
• Research questions have to be:
-concise -narrow -One or two questions
• Its types will determine the type of study:
1-What is or are: Descriptive studies
2-What is the relationship: Descriptive studies
3-Why: Analytical
Experimental
21. 5- Research Hypothesis
• A hypothesis is a statement about the expected
relationship between two or more variables:
Independent
(explanatory)
variables
Cause or
determine
Dependent
(outcome)
variables
Null hypothesis (HO)الصفرى .…………الفرضNull effect (No difference,
association)
Alternative hypothesis (HA) البديل …الفرضAn effect (that you
predict)/difference, association)
22. Example for research question,
hypothesis
Q: What is the effect of Measles vaccine on
post measles encephalitis?
H0: Null hypothesis الصفرى :الفرض
There is no effect (No association)
HA: Alternative hypothesis الفرضالبديل
• Measles vaccine decrease rate of post measles
encephalitis, There is effect (association)
23. • The aim describes what is expected to arise from
the study, which is not necessary reached by the
end of the study
• The objectives describes:
– what will happen, more detailed descriptions
– it indicates the variables that will be examined
– what the researcher promise that will happen.
– It uses action verbs e.g. to recognize, to
identify, to determine, to clarify, to reduce
………etc.
6- Aim & Objectives
• must be
• SMART
– S: Specific
– M: Measurable
– A: Attainable
– R: Relevant
– T: Time bound
24. 7- Methodology
Methodology is important aspect of the research; describe how the
objectives are achieved :
Its Components:
1- Study design. 2- Study setting (place).
3- Study population 4- Sample size.
5- Sampling method / technique.
6- Data collection/ Measures. 7-Instruments / tools.
8- Data management . 9- Ethical considerations.
25. البحث تصميم طرق STUDY DESIGNS
Did the Investigator/Researcher
Assign exposure?
Yes No
Experimental Observational
27. I- Descriptive studies
• Just describe (knowing the situation)
*Answer questions: what, where, who, when
• There is no comparative group.
• Their types are:
1-Case report (single case)
2-Case series (more than one case)
3-Cross-sectional (Prevalence study)
28. The flow chart of cross-sectional study
Reference
Population
Sample
Exposure and disease
Exposure and no disease
No exposure and disease
No exposure and no
disease
29. Cross sectional study gives
Prevalence rate (old and
new cases)
Assess exposure and
disease at the same point of
time
30. II-Analytical studies search for causes
• Find cause effect relationship
• Answer questions: why, how
1. Case control study
2. Cohort study
31. Had Exposure No Exposure
Study
Population
Cases Controls
No ExposureHad Exposure
35. Hierarchy of major study designs
Meta analysis
Systematic review
RCT
cohort
case control
Cross sectional
interventional
observational
validity
36. Sample العينة
A Sample:
is a group of individuals (or things)
selected from a larger population and
is used to get certain information
about this population.
(less effort, cost, time)
Sampling:
is a Process of selecting a sample
ار ار ل نا نام كأسا غرفت إذا(ثا ار عيظا)،ل ارطا كا اى ل عوا تثعاى تح ين تطاع ،ا،لواا ووجدتا
ر ار في ارطاجاد(ث ار نجعطن.)
Sampling
37. Sampling unit: This is that element or set of elements
considered for selection, it could be individuals, or
individuals within the households e.g., schools, hospitals.
Sampling frame: This is the actual list of sampling units
from which the sample will be selected
39. I- Non probability Sampling
(1) Accessibility (convenient) sampling:
The readily accessibly sample units are selected.
They may be :
-Nearest neighbors or relatives.
-Friends, coworkers
such samples are biased
Researcher approach some
kinds of respondents and
avoid others
40. I- Non probability Sampling
2- Snowball sampling
The first respondent refers a friend. The
friend also refers a fried and so on
41. 3- Purposive sampling
The researcher himself chooses the sample
which in his opinion are the best appropriate
for the study.
This is used primarily when there are limited
numbers of people in the area being
researched.
عطدي عيظ
43. II- Probability Sampling
(1) Simple random sample : عيظائياعشبطي
Every individual in the population has an equal chance to
be selected.
Process: - construct sample frame.
- decide sample size.
- select the sample no randomly
How to choose
randomly?
44.
45. 2- Systematic random
sampling
Sampling interval (K) = Interval
size
total population/sample size. (N/n)
First number is selected randomly.
Then add the sampling interval to the
random start to select subsequent
units.
Example:
We need 5 students from
15.
Sampling interval = N/n=
15/5= 3
We take every 3rd student,
starting from a random
number selected from the
first 3 no.
i.e. 3, 6, 9, 12, 15
نظعظط ائياعش عيظ
50. SAMPLE SIZE
Sample size: the number of individuals or things
to be included in the study.
Determinants of sample size :
Type of study design
Prevalence of the problem
51. Ethical Considerations
One of the most important aspects of biomedical research, and Institutional
approval (ethical committee) for the research must be gained.
Information form should contain:
Outline of study {ٍَِٛقِداَّصان َعَي ٕإَُُكَٔ َ ََّّللا ٕاُقَّتا ٕاَُُيَآ ٍَِٚذَّنا آََُّٚأ اَٚ}[انتٕتح:119]
Responsibilities (Who??)
Risks/Insurance
Confidentiality (legal framework)
Voluntary participation
Incentives/ Rewards if any.
A separate consent form for
each participant is required.
52. WHAT ARE THE TOOLS OF DATA COLLECTION
QUESTIONNAIRE االستبيانات
INTERVIEW الشخصية الممابلة
OBSERVATION المالحظة
CHECKLIST المراجعة لائمة
FOCUS GROUP بؤرية منالشاتمجمعة
53. Types of questionnaire
Based upon design:
Structured (tailored)
Non-structured (standardized)
Semi-structured
Based upon type of questions
Closed end questionnaire المغلك-المميد
Open end questionnaire المفتوح
Closed and open end questionnaire المزدوج
Photographer questionnaire المصور
Based upon method of administering
Face to face
Mail
54. The steps involved in the development of a questionnaire:
1. Planning and deciding the information required.
2. Define the target or study population
3. Choose the method(s) of reaching your target respondents.
4. Introduce the questionnaire : (Covering letter)
5. Develop the question wording (content of the questions)
6. Put questions into a meaningful order and format,
7. Revise, check the length of the questionnaire, form draft.
8. Pre-test the questionnaire (pilot study).
9. Develop the final questionnaire form.
56. Coding the questionnaire االستبيان تكويد
Coding allow the researcher to reduce large quantities of information
into a form that can be more easily handled, especially by computer
programs.
This is useful during data entry, particularly when more than one person
is involved in the data entry process and helps ensure accurate
tabulation of the results.
The coding of the answers is made easy by use of the same coding for
all questions in the acceptability questionnaire
56
57. Examples for coding
Questions Coding
Gender 1- Male 2- Female
Marital status 1- Single 2- Married 3- Divorced 4- Widowed
Age …….years
Do you hear about rheumatic fever? 0- No 1- yes
Is the smoking increase the cancer lung? 0- no 1- yes 2- I don’t know
What is your occupation? 1- Not working 2- employee 3- worker 3- professional
4- others
What is your favorite sports?
1- Football 2- Basketball 3- tennis 4- Volleyball
Football 1- no 2- yes
Basketball 1- no 2- yes
tennis 1- no 2- yes
Volleyball 1- no 2- yes
57
58. Tips for writing results section, discussion ومنالشتها النتائج عرض
نسبة أشارت59الطالب من ٪استجوابهم تم الذين
قسم في العاملين تجاوب يلقون بأنهمالدورياتلألسئلة
تحديد في المساعدة طلب في وكذلك عليهم تطرح التي
األعداد بشأن اإلجابات توفير أو الدوريات مواقع
،األرفف على أماكنها في الموجودة غير أو المفقودةولد
ذلن سبب يكونالمكتبة إدارة إليه عمدت ما هو
منطقة في للدوام الموظفين أحد تخصيص من المركزية
لهم ويقدم ،المستفيدين من ًاقريب ليكون الدوريات
التي المساعدة.يحتاجونها
58
Result section include both text and illustrative
(tables and graphs)
The results section is not for interpreting the
results in any way;
It is very easy to put too much information into
the results section
If you make a table of your findings, you do not
need to insert a graph highlighting the same data
(no duplication)
Show the most relevant information in the
graphs, figures and tables.
Interpretation of your results includes discussing
how your results modify and fit in with what we
previously understood about the problem
It has been found that male mice react to
estrogen treatment by a reduction in phase
three of courtship behavior (Gumwad
1952:209; Bugjuice 1970)
60. Harvard System (alphabetical by author name /date):
Berridge, MJ 1998, Neuronal calcium signaling, Neuron vol. 21: pp. 13-26
APA (American Psychological Association) System (alphabetical)
Berridge, M.J. (1998). Neuronal calcium signaling. Neuron 21, 13-26.
األلطدي ح لظ(2006م)،"ادي ارط ربي ار ارططوك في األوري ارصثي ي عارر في نويم رو ارعظظيطي اللاارو اراظيفي اررض"،ربي ار ارطجو
اإلداري وام رونج ،13ص ،306.
Vancouver System (numbered in order or citation)
1. Berridge MJ. Neuronal calcium signaling. Neuron. 1998;21:13-26
Names of all authors,
The title of the publication,
The name of journal, year, volume, page numbers.
كتابة نظامالمراجع 8- REFERENCES
61. 9- Appendices يهحقاخ
Contents could be:
- Data collection instrument
- Letters of approval
- Ethics Consent forms
- Map
- Extra photograph
- Explanation of formulas, mathematical procedures for data analysis
Appendix I,Appendix II, etc.
N.B.
62. Types of Abstracts
Informative abstracts توضيحي : summarize the article based on the paper
structure (problem, methods, case studies, conclusions), (but without
section headings.
Indicative abstracts دلالي often used in (review articles, conference
reports. ): made up of three parts:
• Scope • Arguments Used • Conclusion
Structured abstracts follow headings required by the journal . Often used
in Medical journals (background-objectives-methods-results-conclusion)
63. Content of Abstract
Introduction (background)
Objectives
Methodology
Results
Conclusion
No discussion in abstract
The Abstract SHOULD NOT
contain:
References to other
literature,
Abbreviations, any sort of
illustration, figure, or
table, or references to
them.
64. Key words: Medical Subject Headings 2017
https://meshb.nlm.nih.gov/#/fieldSearch
66. References
Gibaldi, Joseph. MLA Handbook for Writers of Research Papers. 6th ed. New York:
Modern Languages Association of America, 2003.
Link Level 3 R 808.02 GIB 2003
Michael Derntl. Basics of research paper writing and publishing. Int. J. Technology
Enhanced Learning, Vol. 6, No. 2, 2014.
حافظالعزيز عبد بن الرشيد عبد ،العلمي البحث أساسياتجامعةالعزيز عبد الملك1433هـ(2012م.)137،ص
24سم
صالحا كله عملنا اجعل اللهم