5. The pattern of sampling variability can not be ascertained in---
a. None of these
b. Non random sampling
c. Random sampling
d. Both of these
Answers
Answer:
The pattern of sampling variability can not be ascertained in non random sampling.
Explanation:
Sampling is the process of selecting individuals from the population for a research study.
A sample should be so selected that it should represent the whole population.
To ensure that, the random method of selection should be used.
- Random or probability sampling is a precise method to obtain a sample that is representative of the population. Each individual in the population has an equal chance of being selected for the sample.
- Non random or nonprobability sampling is the selection process done without randomization. There is a limited probability of a participant being included in a sample. Selection process is partially judgmental and subjective.
How much a score is differing from the true value, can be measured by studying the pattern of sampling variability. The larger the variability of scores, the larger the sample must be in order to be representative of population.
Therefore, the pattern of sampling variability can not be ascertained in non random sampling.
Hence, the correct answer is option b.
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