The document outlines the concept of research design, emphasizing its definition, importance, and various types. It categorizes research design into quantitative and qualitative types and further divides it into five specific designs: descriptive, experimental, correlational, diagnostic, and explanatory. Additionally, it distinguishes between research methods and research methodology, highlighting their roles in conducting effective research.

1. Research Design
Presented by
Md. Anwarul Islam Rajeev
ID. 1973505
Institute of Disaster Management
Khulna University of Engineering and Technology
Course Code : 6107
Course Title : Research Methodology
Date: 7th September, 2019

2.  Meaning of research design
 Importance of research design
 Types of research design
 Method Vs Methodology
Outline

3.  Research design is defined as a framework of methods and techniques
chosen by a researcher to combine various components of research in a
reasonably logical manner so that the research problem is efficiently
handled. It provides insights about “how” to conduct research using a
particular methodology.
 According to William Zikmund, “Research design is defined as a
master plan specifying the methods and procedures for collection and
analyzing the needed information.’’
Meaning of Research Design

4. • It reduces inaccuracy
• Helps to get maximum efficiency and reliability
• Eliminates bias and marginal errors
• Minimizes wastages of time
• Helpful for collecting research materials
• Gives an idea regarding the type of resources required in terms of
money, manpower, time and efforts.
• Guide the research in the right direction
Importance of Research Design

5. A researcher must have a clear understanding of the various types of
research design to select which type of research design to implement for a
study.
 Research design can be broadly classified into two categories.
1. Quantitative Research Design
2. Qualitative Research Design
Types of Research Design

6. 01. Quantitative Research Design
• Quantitative research is implemented in cases where it is important for
a researcher to have statistical conclusions to collect actionable insights.
• Quantitative research design is important for the growth of any
organization because any conclusion drawn on the basis of numbers and
analysis will only prove to be effective for the business.
Types of Research Design (Cont.)

7. 02. Qualitative Research Design
• Qualitative research is implemented in cases where a relationship
between collected data and observation is established on the basis of
mathematical calculations.
• Theories related to a naturally existing phenomenon can be proved or
disproved using mathematical calculations.
Types of Research Design (Cont.)

8. Further, research design can be divided into five types –
i. Descriptive Research Design
◦ Researcher is solely interested in describing the situation or case under
his/her research study.
◦ It is a theory-based research design which is created by gather, analyze
and presents collected data.
Types of Research Design (Cont.)

9. ii. Experimental Research Design
• Experimental research design is used to establish a relationship
between the cause and effect of a situation.
• It is a highly practical research design method as it contributes towards
solving a problem at hand.
Types of Research Design (Cont.)

10. iii. Correlational Research Design
• Correlational research is a non-experimental research design technique
which helps researchers to establish a relationship between two closely
connected variables.
• Two different groups are required to conduct this research design
method.
• Correlation between two variables is concluded using a correlation
coefficient, whose value ranges between -1 and +1.
Types of Research Design (Cont.)

11. iv. Diagnostic Research Design
• In the diagnostic research design, a researcher is inclined towards
evaluating the root cause of a specific topic.
• Elements that contribute towards a troublesome situation are
evaluated in this research design method.
Types of Research Design (Cont.)

12. v. Explanatory Research Design
• In exploratory research design, the researcher’s ideas and thoughts are
key as it is primarily dependent on their personal inclination about a
particular topic.
• Explanation about unexplored aspects of a subject is provided along
with details about what, how and why related to the research questions
Types of Research Design (Cont.)

13. Research Methods Research Methodology
Research methods are the methods by
which you conduct research in a subject or
a topic.
Research methodology explains the
methods by which you may proceed with
your research.
Research methods involve conduct of
experiments, tests, surveys etc.
Research methodology involves the
learning of the various techniques that can
be used in the conduct of research and in
the conduct of tests, experiments, surveys
and critical studies.
Research methods aims at finding solutions
to research problems.
Research methodology aims at the
employment of the correct procedures to
find out solutions.
Method Vs Methodology

14. Thanks for Kind Attention