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sampling design SAMPLE DESIGN The way of selecting a sample from a population is known as sample design. It describes various sampling techniques and sample size.
Management decision problems 3.) Research objectives 4.) Research Methodology a. Sampling b. Questionnaire Design c. Data Collection Method d. Problems Encountered
of the intervention, (5) the purpose of this evaluation, (6) the evaluation design, (7) the sampling process, (8) the dependent and independent variables, (9) the
research - Hypotheses and research question Section 2. Primary research design - Research design - Sampling - Measurement - Pre-test design - Data collection and
by the letter (n). * The way you select students, families or electors is called the sampling design or strategy. * Each student, family or elector that becomes the
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SAMPLE DESIGN
The way of selecting a sample from a population is known as sample design. It describes various sampling techniques and sample size. It refers to the technique or procedure the researcher would adopt in selecting items for the sample.
STEPS IN SAMPLE DESIGN
Type of universe
Sampling unit
Source List
Size of Sample
Parameters of Interest
Budgetary Constraint
Sampling Procedure
CRITERIA OF SELECTING A SAMPLING PROCEDURE
Inappropriate sampling frame
Defective measuring device
Non-Respondents
Indeterminancy principle
Natural bias in the reporting of data
CHARACTERISTICS OF A GOOD SAMPLE DESIGN
Sample design must result in a truly representative sample.
Sample design must be such which results in a small sampling error.
Sample design must be viable in the context of funds available for the research study.
Sample design must be such so that systematic bias can be controlled in a better way.
Sample should be such that the results of the sample study can be applied, in general, for the universe with a reasonable level of confidence.
Different types of sample designs
There are different type of sample designs based on two factors, the representation basis and the element selection technique. On the representation basis the sample may be probability sampling or it may be non probability sampling. Probability is based on random selection, whereas non probability sampling is non-random sampling'. On element selection basis it can be unrestricted or restricted sample. Thus The following chart exhibits the sample designs:
CHART SHOWING BASIC SAMPLING DESIGNS
ELEMENT SELECTION TECHNIQUE
UNRESTRICTED SAMPLING
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