A research design is the arrangement of conditions for collection and analysis of data in a manner that aims to combine relevance to the research with economy in procedure.
It is a conceptual structure within which research is conducted; it constitutes the blueprint for the collection, measurement and analysis of data.
RESEARCH DESIGN , Sampling Designs , Dependent and Independent Variables, Extraneous Variables, Hypothesis, Exploratory Research Design, Descriptive and Diagnostic Research
Research is the systematic efforts of gathering, analyzing & interpreting the problems confronted by humanity.
this ppt contains following points :-
Meaning of research
Characteristics of Research
Objectives of Research
Motivation in Research
Importance of Research
Types of Research
Research Process
Difference Between Research Methods & Research Methodology
Meaning of Business Research
Role of Business Research
Factors Affecting Business Research
RESEARCH DESIGN , Sampling Designs , Dependent and Independent Variables, Extraneous Variables, Hypothesis, Exploratory Research Design, Descriptive and Diagnostic Research
Research is the systematic efforts of gathering, analyzing & interpreting the problems confronted by humanity.
this ppt contains following points :-
Meaning of research
Characteristics of Research
Objectives of Research
Motivation in Research
Importance of Research
Types of Research
Research Process
Difference Between Research Methods & Research Methodology
Meaning of Business Research
Role of Business Research
Factors Affecting Business Research
Exploratory Research Design - Meaning and MethodsSundar B N
This ppt contains Exploratory Research Design which covers Introduction to Exploratory Research, Meaning of Exploratory Research, Techniques of Exploratory Research, Examples of Exploratory Research, Methods of Designing Exploratory Research
Research, Types and objectives of research Bindu Kshtriya
This presentation is regarding the basics of research method, about the voyage of research, steps included in research, types of research including descriptive, analytical, applied, fundamental, quantitative, qualitative conceptual, empirical historical conclusion oriented etc
Research Design constitute blue print for the collection, measurement and analysis of data.
Types of Research Designs and How to select good Research Design.
Exploratory Research Design - Meaning and MethodsSundar B N
This ppt contains Exploratory Research Design which covers Introduction to Exploratory Research, Meaning of Exploratory Research, Techniques of Exploratory Research, Examples of Exploratory Research, Methods of Designing Exploratory Research
Research, Types and objectives of research Bindu Kshtriya
This presentation is regarding the basics of research method, about the voyage of research, steps included in research, types of research including descriptive, analytical, applied, fundamental, quantitative, qualitative conceptual, empirical historical conclusion oriented etc
Research Design constitute blue print for the collection, measurement and analysis of data.
Types of Research Designs and How to select good Research Design.
Research Design -Definitions -Features - Steps in Planning Research Design - Types of Research Design - Exploratory, Descriptive, and Causal Research Designs
Herbal drugs / herbal medicines include
herbs, herbal materials, herbal preparations and
finished herbal products, that contain as active ingredients, part of plants, or other plant materials, or combinations.
Herbal medicines comprise of therapies employing plant based products.
It is an integral part of Ayurveda and some indigenous medical systems.
Herbal drugs are becoming more popular in the modern world for their application to cure variety of diseases with less toxic effects and better therapeutic effects
OSI Reference Model - internationally standardised network architecture.
OSI = Open Systems Interconnection: deals with open systems, i.e.systems open for communications with other systems.
Specified in ISO 7498.
Model has 7 layers.
Supercomputers...are used to process very large amounts of information including processing information to predict hurricanes, satellite images and navigation, and process military war scenarios
Mainframes...are used by government and businesses to process very large amounts of information.
Mini-Computers...are similar to mainframes...they are used by business and government to process large amounts of information.
Personal Computers (PC
The first computers used vacuum tubes for circuitry and magnetic drums for memory.
They were often enormous and taking up entire room.
First generation computers relied on machine language.
They were very expensive to operate and in addition to using a great deal of electricity, generated a lot of heat, which was often the cause of malfunctions.
The UNIVAC and ENIAC computers are examples of first-generation computing devices.
Chromatography is an analytical method in which compounds are physically separated and measured.
The main purpose of chromatography is to separate and quantify the target sample.
The Chromatography technique used to separate a mixture of compounds in pharmaceutical sciences , analytical analytical Chemistry with the purpose of identifying, quantifying and purifying the individual components of the mixture.
The Hedgehog pathway was discovered in fruit fly (Drosophila) and is conserved in vertebrates (including humans)
The Hedgehog pathway is involved in cell growth and differentiation to control organ formation during embryonic development.
Hedgehog signalling regulates embryonic development, ensuring that tissues reach their correct size and location, maintaining tissue polarity and cellular content.
In the skin, the Hedgehog pathway is critical for regulating hair follicle and sebaceous gland development.
Germline mutations in components of the Hedgehog signalling pathway results in a number of developmental abnormalities.
Hedgehog signalling normally remains inactive in most adult tissues
Oxygen is highly reactive atom that is capable of becoming part
of potentially damaging molecule commonly called “free radical.”
Free radicals are capable of attacking cells of the body, causing
them to lose their structure and function.
Free radicals have been implicated in the pathogenesis of at
least 50 diseases.
Free radial formation is controlled naturally by various compounds
known as antioxidants.
It is when the ability of antioxidant is limited that this damage can
become cumulative and debilitating.
Following criteria should be considered while selecting an antioxidant.
It should be able to produce desire redox reaction.
It should be physiologically and chemically compatible.
It should be physiologically inert.
It should be non-toxic both in the reduced and oxidized forms.
It should be effective in low concentration.
It should provide prolonged stability to the formulation.
These are the substances which are added in the formulation along the therapeutic agent so as to impart specific qualities in the formulation.
These are have very little or no therapeutic value but are necessary in the manufacture of various dosage forms.
Purposes served by Additives:
Provide bulk to the formulation.
Facilitate drug absorption or solubility and other pharmacokinetic considerations.
Aid in handling of “API” during manufacturing .
Provide stability and prevent from denaturation etc
Exists without actions of humankind in the form of matter/energy which is available in the earth and get used by living thing.
Or exist as a separate entity such as fresh water, air and as well as a living organism such as a fish.
Or it may exist in an alternate form that must be processed to obtain the resource such as metal ores, petroleum, and most forms of energy.
Extraction is a process of separation or isolation of pharmaceutical active ingredients
from plant or animal drugs with the help of solvent.
On the basis of the physical nature of crude drug to be extracted i.e. liquid or solid ,the extraction process may be:
Liquid –Liquid Extraction Or
Solid –Liquid Extraction.
The solvent used for extraction is called as ‘Menstruum’ and the residue left after extracting desired constituents is called ‘Marc’.
Required Ideal Properties of Menstruum :
Should be inert and non –toxic
Should extract only the desirable constituent of the crude drug .
Should be cheap and easily available
Parkinson’s disease (PD) is the second most chronic, slowly progressive age associated
neurodegenerative disorder characterized by selective loss of dopaminergic neurons in the substantia nigra (SN) pars compacta, leads to deficiency or depletion dopamine (DA) in the striatum.
Idiopathic - (unknown cause)
Genetic - (clustering of early-onset pd in some families)
Drug induced (Anti-depressant, calcium channel blockers)
Toxins – (Environmental and Neurotoxins)
Head Trauma – (During accidental conditions)
Cerebral Anoxia
Histamine is an endogenous substance that is amine synthesized, stored and released by the various cells of the body: (a) Mast cells, which are abundant in the skin, GI, and the respiratory tract,
(b) Basophils in the blood, and (c) Some neurons in the CNS and peripheral NS.
It is an “Autocoid” that is secreted locally and regulate the activity of various near lying cells and neurons.
Huntington's disease is slowly progressive, rapidly growing hereditary brain disease that causes abnormal motor coordination, thinking, behavior and ultimately leads to dementia.
Its necessary to diagnosis earlier i.e. onset of movement disorder, particularly
with chorea and impaired voluntary movement.
Autosomal dominant inheritance with 2000 people are diagnosed each year.
No drug therapy is available
The worldwide prevalence of Huntington’s Disease is 5-10 cases per 10000 which affects men and women equally
SPECTROSCOPY is defined as the study of the interactions between radiations and matter as function of wavelength λ .
Interactions with particle radiation or a response of a material to an altering field
or varying frequency.
SPECTRUM : A plot of the response as a function of wavelength or more commonly frequency is referred to as spectrum.
SPECTROMETRY : It is measurement of these responses and an instrument which performs such measurements is a spectrophotometer or spectrograph, although
these terms are more limited in use to original field of optics from which the
concept sprang.
HPTLC is the improved method of TLC which utilizes the conventional technique of TLC in more optimized way.
It is also known as planar chromatography or Flat-bed chromatography.
Chromatography is a physical process of separation in which the components to be separated are distributed between 2 immiscible phases-a stationary phase which has a large surface area and mobile phase which is in constant motion through the stationary phase.
These are the organic products of natural or synthetic origin which are basic in
nature & contain one or more than one nitrogen atoms, normally of heterocyclic nature &
possess specific physiological actions on human or animal body, when used in small quantites.
The term is derived from the word ‘alkali-like’ & hence they resemble some of characters
of naturally occuring amines.
The term is derived from the word ‘alkali-like’ & hence they resemble some of
characters of naturally occuring amines.
A Ward round is a visit made by a medical practitioner, alone or with a team of health care professionals and medical students to hospital in-patients at their bedside to review and follow-up the progress in their health.
Usually at least one ward round is conducted
everyday to review the progress of each
patient outcome.
Pharmacist’s participating in medical ward
rounds promotes health care
Participation of the Pharmacists in ward
rounds in various practice settings helps to
provide rational drug use.
PHARMACOVIGILANCE
The World Health Organization (WHO) defines Pharmacovigilance as “the science and activities relating to the detection, assessment, understanding and prevention of adverse effects or any other drug-related problem.”
ADVERSE DRUG REACTION
According to WHO “ADR is a response to a drug which is noxious and unintended, and which occurs at doses normally used in man for the prophylaxis, diagnosis, or therapy of disease, or for the modifications of physiological function.”
Have full fleged clinical trial data management systems which bring them a good amount of business and revenue.
CDM is a fundamental process which controls data accuracy of each trial besides helping the timelessness to be achieved.
It helps in linking clinical research co-ordinator = who monitor all the sites & collects the data.
it Links with biostatisticians = who analyze, interpret and report data in clinically meaningful way.
Pyrogens include any substance capable of eliciting a febrile (or fever) response upon injection or infection
Endotoxin is a subset of pyrogens that are strictly of gram- negative bacterial origin; they occur (virtually) nowhere else in nature.
Lipopolysaccharide (LPS)is a part of endotoxin, or, endotoxin is the natural complex of LPS occurring in the outer layer of the bilayered gram-negative bacterial cell
Tom Selleck Health: A Comprehensive Look at the Iconic Actor’s Wellness Journeygreendigital
Tom Selleck, an enduring figure in Hollywood. has captivated audiences for decades with his rugged charm, iconic moustache. and memorable roles in television and film. From his breakout role as Thomas Magnum in Magnum P.I. to his current portrayal of Frank Reagan in Blue Bloods. Selleck's career has spanned over 50 years. But beyond his professional achievements. fans have often been curious about Tom Selleck Health. especially as he has aged in the public eye.
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Introduction
Many have been interested in Tom Selleck health. not only because of his enduring presence on screen but also because of the challenges. and lifestyle choices he has faced and made over the years. This article delves into the various aspects of Tom Selleck health. exploring his fitness regimen, diet, mental health. and the challenges he has encountered as he ages. We'll look at how he maintains his well-being. the health issues he has faced, and his approach to ageing .
Early Life and Career
Childhood and Athletic Beginnings
Tom Selleck was born on January 29, 1945, in Detroit, Michigan, and grew up in Sherman Oaks, California. From an early age, he was involved in sports, particularly basketball. which played a significant role in his physical development. His athletic pursuits continued into college. where he attended the University of Southern California (USC) on a basketball scholarship. This early involvement in sports laid a strong foundation for his physical health and disciplined lifestyle.
Transition to Acting
Selleck's transition from an athlete to an actor came with its physical demands. His first significant role in "Magnum P.I." required him to perform various stunts and maintain a fit appearance. This role, which he played from 1980 to 1988. necessitated a rigorous fitness routine to meet the show's demands. setting the stage for his long-term commitment to health and wellness.
Fitness Regimen
Workout Routine
Tom Selleck health and fitness regimen has evolved. adapting to his changing roles and age. During his "Magnum, P.I." days. Selleck's workouts were intense and focused on building and maintaining muscle mass. His routine included weightlifting, cardiovascular exercises. and specific training for the stunts he performed on the show.
Selleck adjusted his fitness routine as he aged to suit his body's needs. Today, his workouts focus on maintaining flexibility, strength, and cardiovascular health. He incorporates low-impact exercises such as swimming, walking, and light weightlifting. This balanced approach helps him stay fit without putting undue strain on his joints and muscles.
Importance of Flexibility and Mobility
In recent years, Selleck has emphasized the importance of flexibility and mobility in his fitness regimen. Understanding the natural decline in muscle mass and joint flexibility with age. he includes stretching and yoga in his routine. These practices help prevent injuries, improve posture, and maintain mobilit
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
Anti ulcer drugs and their Advance pharmacology ||
Anti-ulcer drugs are medications used to prevent and treat ulcers in the stomach and upper part of the small intestine (duodenal ulcers). These ulcers are often caused by an imbalance between stomach acid and the mucosal lining, which protects the stomach lining.
||Scope: Overview of various classes of anti-ulcer drugs, their mechanisms of action, indications, side effects, and clinical considerations.
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
Couples presenting to the infertility clinic- Do they really have infertility...Sujoy Dasgupta
Dr Sujoy Dasgupta presented the study on "Couples presenting to the infertility clinic- Do they really have infertility? – The unexplored stories of non-consummation" in the 13th Congress of the Asia Pacific Initiative on Reproduction (ASPIRE 2024) at Manila on 24 May, 2024.
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How to Give Better Lectures: Some Tips for Doctors
RESEARCH DESIGN
1. RESEARCH DESIGN
KUSHAL KUMAR
ASSOCIATE PROFESSOR
DEPT. OF PHARMACOLOGY
ISF COLLEGE OF PHARMACY
WEBSITE: - WWW.ISFCP.ORG
EMAIL:KUSHAL1KUMAR@GMAIL.COM
ISF College of Pharmacy, Moga
Ghal Kalan, GT Road, Moga- 142001, Punjab, INDIA
Internal Quality Assurance Cell - (IQAC)
2. Research Design: Definition
A research design is the arrangement of conditions for collection and analysis of data in a manner that aims to
combine relevance to the research with economy in procedure.
It is a conceptual structure within which research is conducted; it constitutes the blueprint for the collection,
measurement and analysis of data.
2
3. 3
Research Design: Definition
It contains the information regarding:
What is the study about?
Why is the study being made?
Where will the study being carried out?
What type of data is required?
Where can the required data be found?
What periods of time will the study include?
What will be the sample design?
What techniques of data collection will be used?
How will the data be analysed?
In what style will the report be prepared?
4. 4
Research Design: Categories
Overall, there may be four categories:
The sampling design – method of selecting items to be observed
for the given study.
The observational design – relates to conditions under which
the observations are to be made.
The statistical design – concerns with the analysis of gathered
data.
The operational design – deals with the techniques to carry out
above three steps.
5. 5
Features of a Good Research Design
Flexible
Appropriate
Efficient
Accurate
Economical
Minimises the biasness
Maximises the reliability of the result
6. 6
Types of Research Design
• Three traditional categories:
– Exploratory
– Descriptive
– Causal
• The choice of the most appropriate design depends largely on the objectives of the research and how much
is known about the problem and research objectives.
7. 7
Basic Research Objectives and Research Design
Research Objective Appropriate Design
To gain background information, Exploratory
to define terms, to clarify
problems and hypotheses, to
establish research priorities
To describe and measure a Descriptive
phenomena at a point in time
To determine causality, Causal
to make “if-then” statements
8. 8
1. Exploratory Research Design
Exploratory research is most commonly unstructured, informal research that is undertaken to gain background
information about the general nature of the research problem.
By unstructured, we mean there is no formal set of objectives, sample plan, or questionnaire.
It is usually conducted when the researcher does not know much about the problems.
Exploratory research is usually conducted at the outset of research projects.
The major emphasis is on the discovery of ideas and insights.
9. 9
Exploratory Research Design
Uses
Gain Background Information
Define Terms
Clarify Problems and Hypothesis (refine research objectives)
Establish Research Priorities
Generally, following three methods are used in this case:
a) Survey of concerning literature
b) Experience Survey
c) Analysis of insight-stimulating examples
10. 10
Continue…
a) The survey of concerning literature:
simple method of developing hypothesis
hypothesis stated by earlier researchers may be reviewed
if the hypotheses have not been formulated yet then the task would be to review the literature and
formulate relevant hypotheses
b) The Experience Survey:
means the survey of people who have had practical experience with the problem to be studied
the respondents should also be allowed to raise issues and questions
time taking process, so it would be better if a copy of questions to be discussed with the respondents is
sent to him well in advance
11. 11
Continue…
c) Analysis of “insight-stimulating” examples:
suitable for relatively unexplored area of study
no clear cut answer for what sort of examples should be selected
in general, cases that provide sharp contrasts or having
striking features are considered
12. 12
2. Descriptive/Diagnostic Research Design
Descriptive research studies are those studies which are concerned with describing the characteristics of a
particular individual, or of a group; whereas, Diagnostic research studies determine the frequency with
which something occurs or is associated with something else.
Descriptive research is undertaken to describe answers to questions of who, what, where, when, and how.
Descriptive research is desirable when we wish to project a study’s findings to a larger population, if the
study’s sample is representative.
13. 13
Cross-sectional studies
Longitudinal studies
Panel Studies
a) Cross-sectional studies measure units from a sample of the population at only one point in time.
Sample surveys: are cross-sectional studies whose samples are drawn in such a way as to be representative
of a specific population.
These studies are usually presented with a margin of error.
Cross-sectional studies take “snapshots” of the population at a point in time.
Three basic classifications:
14. 14
b) Longitudinal studies repeatedly measure the same sample units of a population over time.
Longitudinal studies often make use of a panel which represents sample units who have agreed to
answer questions at periodic intervals.
Many large research firms maintain panels of consumers.
Continue…
15. 15
Difference between Exploratory and Descriptive
Research Design
Research Design Exploratory/Formulative Descriptive/Diagnostic
Overall Design Flexible – provide opportunity
for considering diff aspects of
the problem
Rigid – enough provision for
protection against biasness,
must maximise reliability
Sampling Design Non-probability sampling design Probability sampling design
(random)
Statistical Design No pre-planned design Pre-planned design
Observational Design Unstructured instruments for
collection of data
Structured instruments for
collection of data
Operational Design No fixed decision about the
operational procedures
Advanced decision about
operational procedures
16. 16
Important Concepts Related to Research Design
Dependent and independent variables
Extraneous variables
Control
Confound relationship
Research hypothesis
Experimental and non-experimental hypothesis-testing research
Experimental and control group
Treatments
Experiments
Experimental units
17. 17
3. Hypothesis-Testing Research Design
Also known as Experimental studies.
Researcher tests the hypotheses of causal relationship between variables.
Well laid-down procedures has to be followed.
The concept was developed by R. A. Fisher based on his research on agriculture.