The document defines key terms related to sampling in research methodology: skills are small tasks, techniques are combinations of skills, methods combine techniques, and approaches combine methods. Methodology combines approaches. Sampling is selecting a subset of a population to represent it and collect data on attributes. The sampling frame is the complete list of sampling units, which are the fundamental units selected from the population. Mixed sampling uses two or more sampling methods, such as combining probability and non-probability techniques.

1. K.SURESH,
Junior Research Fellow,
Department of Education,
Tamil University,
Thanjavur - 613010.

2.  Difference between skills, techniques,
methods, approach and methodology:

3.  Skill: it is a part of efficient which
assigned small tasks.
 Techniques: it is combination of skills.
 Methods: it is combination of
techniques.
 Approach: it is combination of
methods.
 Methodology: it is combination of
approaches.

4. Sampling:
 “Sampling is a process of selecting a
subset of randomized number of
members of the population of a study
and collecting data about their
attributes” (Panneerselvam, 2004).
 “It is a process of selecting a number
of participants for a study in such a
way that they represent the larger
group from which they are selected”

5. Sampling frame:
 “The limited members of the
population selected are called as
sampling units” (Panneerselvam,2006)
 “Sampling units includes the
fundamental units or a group of such
units, which form the basis of
sampling process” (Pandya, 2010).

6. Sampling units:
 The complete list of all members/units of
the population from which each sampling unit
is selected is known as sampling frame”
(Panneerselvam, 2004).
 “ A list of containing all such sampling units
is known as sampling frame” (Pandya, 2010).
 “The list of sampling units is called as frame
or sampling frame” (incase of finite universe
only)

7.  It is different from mixed method
sampling
 The use of two or more methods of samp
ling; for example, in multistage sampling
, if samples are drawn at random at one
stage and drawn
by a systematic method at another
 Mixed sampling techniques involve two
techniques such as probability and non
probability sampling techniques.

8.  Kothari, C.R and Garg, Gaurav. (2004). Research
methodology: New Delhi: New Age International
Publishers.
 Mixed sampling (2015). Retrieve, 04 Jan, 2015,
from
http://encyclopedia2.thefreedictionary.com/mi
xed+sampling:
 Pandya,R.Shefali. (2010). Educational research.
New Delhi: APH Publishing House.
 Panneerselvam. (2003). Research methodology.
New Delhi: PHI Learning Private Limited.