This document defines key terms and concepts used in research. It discusses variables, data, samples, populations, hypotheses, limitations, validity, reliability and more. Research involves systematically investigating questions through data collection and analysis in order to generate answers and suggest new questions for further study. Key aspects of research addressed include conceptual frameworks, operational definitions, sampling methods, and reliability and validity.

1. ABSTRACT
BASIC RESEARCH
TERMINOLOGIES
SAMPLE
DATA
VARIABLE
OPERATIONAL
CONCEPT DEFINITION VALIDITY
ASSUMPTION
POPULATION
HYPOTHESES LIMITATIONS
CONSTRUCT
STUDTY SETTING DR.MAHESWARI JAIKUMAR
maheswarijaikumar2103@gmail.com

2. RESEARCH
• Research is defined as a
systematic and scientific process
to answer questions about facts
and relationship between facts.
It is an activity involved in
seeking answer to unanswered
questions.

3. RESEARCH
• Research seeks to generate an
answer to the problems as well
as suggesting additional
questions in need of further
inquiry.

4. RESEARCH
• Research is a scientific,
systematic, controlled, orderly
and objective investigation to
develop, refine and expand body
of knowledge.

5. ABSTRACT
A clear, concise summary that
communicates the essential
information about the study. In
research journals, it is usually
located at the beginning of an
article

6. DATA
Units of information or any
statistics, facts, figures, general
material, evidence, or
knowledge collected during the
course of the study.

7. VARIABLES
Attributes or characteristics that
can have more than one value,
such as height or weight. Variables
are qualities or quantities,
properties or characteristics of
people, things, or situations that
change or vary.

8. INDEPENDENT VARIABLE
Variables that are purposely
manipulated or changed by the
researcher. It is also called as “
MANIPULATED VARIBLE”.

9. RESEARCH VARIABLE
Refers to Qualities, Properties or
Characteristics which are observed
or measured in a natural setting
without manipulating &
establishing cause & effect
relationship

10. DEMOGRAPHIC VARIABLES
The characteristics & attributes of
study subjects such as age, gender,
place of living, educational status,
religion, social class, marital status,
occupation, income are considered as
demographic variables.

11. EXTRANEOUS VARIABLES
Are factors that are not the
part of the study but may affect
the measurements of the study
variable.

12. OPERATIONAL DEFINITION
Refers to the way in which the
researcher defines the variables
under investigation. Operational
definition are stated in such way by
the investigator specifying how the
study variables will be measured in
the actual research situation.

13. CONCEPT
Refers to a mental idea of a
phenomenon. Concepts are words or
terms that symbolize some aspects of
reality. E.g.. Love, pain.

14. CONSTRUCT
Is a highly abstract & complex
phenomenon ( concept) which is
denoted by a made up or
constructed term.

15. A construct term is used to
indicate a phenomenon that
cannot be directly observed but
must be inferred by certain
concrete or less abstract
indicators of the phenomenon.
E.g. self esteem.

16. PROPOSITION
• A Proposition is a statement
or assertion of the
relationship between
concepts. E.g., relationship
between anxiety and
performance.

17. CONCEPTUAL FRAMEWORK
• Interrelated concepts or
abstractions that are assembled
together in some rational
scheme by virtue of their
relevance to a common theme. It
is also referred to as theoretical
framework.

18. ASSUMPTION
• Basic principle that is being
true on the basis of logic or
reason, without proof or
verification.

19. HYPOTHESIS
• A statement of the predicted
relationship between two or
more variables in a research
study; an educated or calculated
guess by the researcher.

20. LITERATURE REVIEW
• A critical summary or research
on a topic of interest, generally
prepared to put a research
problem in context or to identify
gaps and weaknesses in prior
studies so as to justify a new
investigation.

21. LIMITATIONS
• Restrictions in a study that may
decrease the credibility and
generalizability of the research
findings.

22. MANIPULATION
• An intervention or treatment
introduced by the researcher in
an experimental or quasi
experimental study; the
researcher manipulates the
independent variable to assess its
impact on the dependent
variable.

23. POPULATION
• The entire set of individuals or
objects having some common
characteristic(s) selected for a
research study is referred to as
population.

24. TARGET POPULATION
• The entire population in which
the researchers are interested
and to which they would like to
generalize the research findings.

25. ACCESSIBLE POPULATION
• The aggregate of cases that
conform to designated inclusion
or exclusion criteria and that are
accessible as subjects of the
study.

26. RESEARCH SETTING
• The study setting is the location
in which the research is
conducted. It could be natural,
partially controlled environment
or laboratories.

27. SAMPLE
• A part or subset of population
selected to participate in the
research study.

28. REPRESENTATIVE SAMPLE
• A sample whose characteristics
are highly similar to that of the
population from which it is
drawn.

29. SAMPLING
• The process of selecting sample
from the target population to
represent the entire population.

30. PROBABILITY SAMPLING
• The selection of subjects or
sampling units from a population
using random procedure; E.g.,
Simple random Sampling,
Stratified random Sampling.

31. NON PROBABILITY
SAMPLING
• The selection of subjects or
sampling units from a population
using non random procedure.
E.g., Convenient Sampling,
Purposive Sampling.

32. RELIABILITY
• The degree of consistency or
accuracy with which an
instrument measures the
attributes it is designed to
measure.

33. VALIDITY
• The degree to which an
instrument what it is intended
to measure.

34. PILOT STUDY
• Study carried out at the end of
the planning phase of research in
order to explore and test the
research elements to make
relevant modifications in
research tools and methodology.

35. ANALYSIS
• Method of organizing , sorting,
and scrutinizing data in such a
way that research question can
be answered or meaningful
inferences can be drawn.

36. ABSTRACT
BASIC RESEARCH
TERMINOLOGIES
SAMPLE
DATA
VARIABLE
OPERATIONAL
CONCEPT DEFINITION VALIDITY
ASSUMPTION
POPULATION
HYPOTHESES LIMITATIONS
CONSTRUCT
STUDTY SETTING DR.MAHESWARI JAIKUMAR
maheswarijaikumar2103@gmail.com