How to Know if a Quantitative Research Design Is Appropriate for Your StudyMaria Sanchez
Are you wondering what quantitative research design is best for your thesis/dissertation? This webinar will present several options and criteria to choose the most appropriate one.
The topics are:
* Characteristics of Quantitative Research
* When to Choose Quantitative Research
* Types of Quantitative Research Designs
* Description, Basic Diagram, and Threats to Validity of Each Type of Design
Research Methods: Experimental Design I (Single Factor)Brian Piper
lecture 9 from a college level research methods in psychology course taught in the spring 2012 semester by Brian J. Piper, Ph.D. (psy391@gmail.com) at Linfield College,
How to Know if a Quantitative Research Design Is Appropriate for Your StudyMaria Sanchez
Are you wondering what quantitative research design is best for your thesis/dissertation? This webinar will present several options and criteria to choose the most appropriate one.
The topics are:
* Characteristics of Quantitative Research
* When to Choose Quantitative Research
* Types of Quantitative Research Designs
* Description, Basic Diagram, and Threats to Validity of Each Type of Design
Research Methods: Experimental Design I (Single Factor)Brian Piper
lecture 9 from a college level research methods in psychology course taught in the spring 2012 semester by Brian J. Piper, Ph.D. (psy391@gmail.com) at Linfield College,
Experimental design is inferential procedure or scientific method in Statistics wherein cause and effect relationship is studied by planning an experiment. In Experimental Design methodology, proper experiments are planned in order to achieve desired objective. Copy the link given below and paste it in new browser window to get more information on Experimental Design:- www.transtutors.com/homework-help/statistics/experimental-design.aspx
Experimental Research Design - Meaning, Characteristics and ClassificationSundar B N
This ppt contains Experimental Research Design Which covers Meaning, Characteristics and Classification of Experimental Research Design.
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https://www.youtube.com/channel/UCjzpit_cXjdnzER_165mIiw
Research Design (Research Types, Quantitative Research Design and Qualitative...Alam Nuzhathalam
An overview of Research Design: Definition, Classification of Research Design, Experimental Research Design, Non Experimental Research Design, Qualitative Research Design, Quantitative Research Design..
Experimental design is inferential procedure or scientific method in Statistics wherein cause and effect relationship is studied by planning an experiment. In Experimental Design methodology, proper experiments are planned in order to achieve desired objective. Copy the link given below and paste it in new browser window to get more information on Experimental Design:- www.transtutors.com/homework-help/statistics/experimental-design.aspx
Experimental Research Design - Meaning, Characteristics and ClassificationSundar B N
This ppt contains Experimental Research Design Which covers Meaning, Characteristics and Classification of Experimental Research Design.
Subscribe to Vision Academy
https://www.youtube.com/channel/UCjzpit_cXjdnzER_165mIiw
Research Design (Research Types, Quantitative Research Design and Qualitative...Alam Nuzhathalam
An overview of Research Design: Definition, Classification of Research Design, Experimental Research Design, Non Experimental Research Design, Qualitative Research Design, Quantitative Research Design..
An experimental research design helps researchers execute their research objectives with more clarity and transparency.Experimental research design is a framework of protocols and procedures created to conduct experimental research with a scientific approach using two sets of variables.The best example of experimental research methods is quantitative research.
Experimental research helps a researcher gather the necessary data for making better research decisions and determining the facts of a research study.
All the concepts related to research design are covered in this PPT Presentation.Research Design being an integral and crucial part of Research majorly deals with Parametric and non-parametric test, Type 1 and type 2 error, level of significance etc.It helps in ascertaining which research technique is used in which situation.
RESEARCH DESIGN , Sampling Designs , Dependent and Independent Variables, Extraneous Variables, Hypothesis, Exploratory Research Design, Descriptive and Diagnostic Research
Biases in Your Research. How to Deal with ThemMaria Sanchez
Biases are not always acknowledged by researchers and that may impact their studies negatively. Know them and be prepared to deal with them successfully.
Chapter 1: The Lighthouse of Your Thesis/DissertationMaria Sanchez
We discuss why the first chapter of your dissertation is so important that you have to look at it whenever a decision is needed. Its role, structure, and process to develop it are discussed as well the role of the other chapters of a thesis/dissertation
Selecting the research problem for your doctoral dissertationMaria Sanchez
Criteria for choosing the most promising topic and research problem for your dissertation is presented. This presentation was designed for DoctoralNet.com free conferences.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
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What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
2. You can use all the quantitative data
you can get, but you still have to
distrust it and use your own
intelligence and judgment.
Alvin Toffler
3. Our Focus for Today
1. Some important concepts to keep in mind
2. Quantitative research: Characteristics and when to
use it
3. Types of quantitative research methods
4. Exercises to practice
5. What Is a Philosophical Paradigm?
It is a basic image of what is
reality (ontology), how we know
something (epistemology), and
how we should find out
knowledge (methodology)
6. Taken from Weaver, K. & Olson, J.K. (2006, p.465)
What Is a Research
Paradigm?
A pattern of beliefs and
practices that regulates inquiry
within a discipline by providing
lenses, frames, and processes
through which investigation is
accomplished
7. Adapted from Wiersma, W. & Jurs, S.G. (2009)
What Is a Research Design?
A plan or strategy for
conducting a research
study. It includes decisions
on what, who, when,
where, how, means,
analyses, etc. It should
respond to the nature of
the research question
8. Adapted from Wiersma, W. & Jurs, S.G. (2009)
What Is a Research
Method?
A set of techniques or
strategies to gather and
analyze data that responds
to the chosen research
design
9. How Do These Concepts Apply to
Quantitative Research?
10. The Philosophical Paradigm
• Ontological assumptions (view of the world):
• There is one defined reality
• It is fixed, measurable, and observable
• Epistemological assumptions (how knowledge is created):
• Knowledge is objective and quantifiable
• Research should test and expand theory
• Methodological assumption (what should be done to get
knowledge):
• Use objective measurement and analysis to get valid
knowledge
12. Adapted from Wiersma and Jurs (2009)
The Research Design
• Top-down logic (deductive)
• Looks for relationships, facts, and
causes
• Theory-based
• Focused on individual variables
• Context-free (generalizations)
• Researcher has a neutral role
• Statistical analysis
14. When to Choose Quantitative Research
If you are interested in:
• Determining relationships, effects, and/or causes
• Testing theories, models, approaches (even if that
is not an explicit goal of the study, but theoretical
principles are important in one way or another)
16. • Experimental: High degree of control.
Random selection or assignment
• Quasi-experimental: Minor level of control
because random selection or assignment is
not possible. Statistics is used to improve the
control of variables
• Non-experimental: Little or no control
18. • Description: Two or more groups are compared using
posttest and random assignment of subjects and
treatment to control prior differences. One group does not
receive treatment
• Diagram: RG1 X1 O1 R = Randomization X = Treatment O = Posttest
RGn Xn On n= number of experimental treatments used
RGn+1
__ On+1 Control group (no treatment)
• Use: When it is necessary to establish if a variable has
effect or not and pretest is not acceptable or possible.
• Common statistical tests: t-test and analysis of
covariance if subject variables are involved
Posttest-Only Control Group Design
19. • Description: Two or more groups are compared using a pretest to
measure the dependent variable before the treatment is
administered. Such measurement is used as statistical control in the
analysis and random assignment of subjects assure equivalence of
the groups. One group does not receive treatment
• Diagram: RG1 O1 X1 O2 R = Randomization X = Treatment O = test
RGn O2n-1 Xn O2n n= number of experimental treatments used
RGn+1 O2n+1 __ O(2n+1) Control group (no treatment)
• Use: When it is necessary to establish if a variable has effect or not
• Threats to validity: Interaction effect of testing (threat to external
validity)
• Common statistical test: Analysis of covariance
Pretest-Posttest Control Group Design
20. • Description: To address the reactive effect of testing and interaction
of testing and treatment, two control groups are added to the
pretest-posttest control group design; one without taking pretest and
another one without pretest and treatment
• Diagram: RG1 O1 X O2
RG2 O3 - O4 R = Randomization O = Test X = Treatment
RG3 - X O5
RG4 - - O6
• Use: When resources and time are available to deal with the
complexity of four research groups
• Threats to validity: None by itself
• Common statistical tests: 2X2 ANOVA (disregarding pretests),
ANOVA plus 2X2 factorial design, or meta-analysis
Solomon Four Groups Design
21. • Description: The different levels of two or more independent variables (factors) are
considered to establish not only their effects on the dependent variable but also the
ones caused by the interaction among them. Theoretically, the number of independent
variables and their levels may be as needed. For example, a 2 X 3 X 5 means one
variable with 2 levels, another with 3, and the last one with 5
• Diagram: (Notation of a 2 X 2 factorial design)
R X11 O
R X12 O
R X21 O
R X22 O
R = Randomization X11 = Factor 1, level 1 X12 = Factor 1, level 2 X21 = Factor 2, level 1 X22 = Factor 2, level 2 O = Measurement
• Use: When measuring the interaction among variables is needed
• Threats to validity: None by itself
• Common statistical test: Factorial ANOVA, MANOVA, MANCOVA, multiple regression
analysis
Factorial Design
Drug Therapy
Placebo Drug A
Psycho-
therapy
None Control Drug A
Method A Method A Combined
23. • Description: Two or more groups are compared using only
posttest. There is not random assignment of subjects since
they are already in groups
• Diagram: G1 X O1 X = Treatment O2 = Posttest n = number of treatments used
Gn Xn On
Gn+1 ___ On+1
• Threats to validity: Selection, statistical regression, and
reactive effect of testing
• Use: Only if some antecedent data establish extent of
similarity between groups
Nonequivalent Posttest-Only Control Group
Design
24. • Description: Two or more groups are compared using pretest and
posttest. Pretest scores are used for statistical control or for
generating gain scores. There is not random assignment of subjects
since they are already in groups
• Diagram: G1 O1 X1 O2 O= Test X = Treatment n= number of treatments used
Gn O2n-1 Xn O2n
Gn+1 O2n+1 __ O2n+2
• Threats to validity: Selection, statistical regression, and reactive
effect of testing
• Common statistical tests: Covariance and multiple regression
Nonequivalent Pretest –Posttest Control
Group Design
25. • Description: The order in which treatments are administrated is
changed during the study so as to test every subject for all the
considered conditions and control order effects in repeated
measures
• Basic Diagram :
G1 XA XB O
G2 XB XA O
X = Treatment G = Group O = Measurement
• Threats to validity: Multiple treatment interference
• Common statistical test: ANOVA
Counterbalanced Design
26. • Description: The dependent variable is measured several
times before applying a treatment and then a new series of
measurement is performed
• Diagram : O1 O2 … X Oi… On
X = Treatment O = Measurement
• Threats to validity: History and reactive effect of testing
• Statistical tests: They depend on the specific type of time
series designed
Time Series Design
30. Establish what research design is appropriate for
this study…
•Problem: A researcher has three different groups of employees
(engineers, administrators, sales personal) which are not
performing at the expected level. Data shows three different levels
of current performance: high, average, and low.
•Purpose: To determine the effects of different types of feedback
on employees’ performance
•Research Question: What is the effect of different types of
feedback over the performance of employees?
• Values of the independent variable: positive, negative, no
feedback
31. Establish what research design is appropriate for
this study…
•Problem: Faculty morale is low at a university according to
the results of a questionnaire applied.
•Purpose: To establish the effect of sensitivity training on
faculty morale
•Research Question: What is the effect of sensitivity training
workshops on faculty morale?
• Values of the independent variable: treatment, no
treatment
32. Establish what research design is appropriate for
this study…
•Problem: A new calculus program has been suggested to
improve students performance
•Purpose: To establish the effect of the suggested program
on students’ calculus scores
•Research Question: What is the effect of the suggested
calculus program on students’ scores?
• Values of the independent variable: treatment, no
treatment
33. Now do the same with your own study…
•Problem:
• Research Question:
• Research Design:
•Research Method:
34. Advanced Ideas for Today:
Your research question determines the method
you should use to gather data
Quantitative research asks for data that
generate valid and objective answers
35. Now you know
1. The paradigms behind quantitative
research
2. The experimental and quasi-
experimental methods you can use to
answer your research question(s)
36. References
Thebmj (2017). Study design and choosing a statistical test. BMJ
Publishing Group Ltd. Retrieved from
http://www.bmj.com/about-bmj/resources-
readers/publications/statistics-square-one/13-study-
design-and-choosing-statisti
Weaver, K. & Olson, J. K. (2006). Understanding paradigms used
for nursing research. Journal of Advanced Nursing, 53(4),
459-469. doi: 10.1111/j.1365-2648.2006.03740.x
Wiersma, W. & Jurs, S.G. (2009). Research methods in education:
An introduction (9th ed.). Boston, MA: Allyn and Bacon
37. What’s Up at MN & DN this summer?
1. VERY IMPORTANT – backwards map your summer work
2. 30 day writing challenge, 30 day work-life balance challenge, and 365s -
keep you in touch with your work
3. Group work – RLC writing OR
Lingerers
38. Avoid this one
1. VERY IMPORTANT – backwards map your summer work
2. 30 day writing challenge, 30 day work-life balance challenge, and 365s -
keep you in touch with your work
3. Group work – RLC writing OR Lingerers