Question
Which of the following is the key difference between
probability-based and non-probability-based sampling techniques?Solution
The core difference between probability-based and non-probability-based sampling lies in the selection process. In probability-based sampling, each member of the population has a known, non-zero chance of being selected, which allows for the application of statistical techniques that generalize findings to the entire population. This method includes random sampling, stratified sampling, and systematic sampling. Non-probability sampling, on the other hand, involves methods where selection is based on convenience or judgment (e.g., convenience sampling, judgmental sampling), meaning some individuals may not have a chance of being selected. This can introduce bias, making it less reliable for generalizations. Why Other Options Are Incorrect: • A: Probability-based sampling does not guarantee a perfectly representative sample; it only ensures that each member has a known probability of selection. • B: Probability-based sampling relies on random selection, not non-probability sampling. Non-probability sampling may use judgment or convenience as a selection method. • D: Both sampling methods can be used for datasets of various sizes. Probability sampling is often preferred for larger, diverse datasets for better generalization. • E: Both probability and non-probability sampling can be used for hypothesis testing, but probability sampling is more reliable for ensuring validity in hypothesis tests.
IFS Quick Access' is a system developed by:
Seed rate for rice in line sowing method?
WTO was established in the year
It is a whole grain rice with the inedible outer hull removed. The Dehulled rice is called as
Large amount of saliva secretion and rounded blisters like vesicles appeared on the inner side of the lips, gums, dental pad, palate and tongue. These s...
Which of the following is the chief characteristic of ‘mixed farming’? (2012)
The headquarters of AGMARK is situated at:
Runoff in alfisols is ___________ than vertisols
Which one of the following statements is INCORRECT for sprouted pulses?
The scientific and commercial method of beekeeping for the production of honey and wax is called