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The distinction between random and non-random sampling lies in how samples are selected from a population. Random sampling relies on chance, giving every individual an equal opportunity to be chosen, which minimizes selection bias and enhances representativeness. In contrast, non-random sampling does not ensure each member has an equal chance of selection and often involves judgment or convenience, leading to a higher risk of bias. Random sampling methods like simple random sampling or stratified sampling are thus preferred for studies requiring generalizable results, while non-random sampling is sometimes used for exploratory research where representativeness is less critical. The other options are incorrect because: • Option 1 confuses judgment with randomness; judgment sampling is a non-random method. • Option 2 reverses definitions, as random sampling, not non-random, ensures equal chance. • Option 3 is inaccurate; both sampling types are used in qualitative and quantitative research, depending on goals. • Option 5 is misleading, as time required varies by method specifics, not by randomness alone.
Select the most appropriate option to fill in the blank.
A ______ mind rarely meets a dead end; it continues the search for the answers.
Children need ___________ to make sense of their internal and external worlds.
Stretching helps prevent lower back pain __________ tightness in the lower body.
Select the most appropriate option to fill in the blank.
The antique store was filled with a ___________ collection of rare artifacts from aro...
The startup is growing quickly, but they need to ensure they don’t _______ and make careless mistakes.
Choose the most suitable option to fill in the blanks in the sentences below.
The project became so expensive that we had __________.
The team held on by the skin of their teeth to win the crucial match.
1) impressed
2) daunted
3) motivated
4) happy
5) cultivated
The _________ about teachers is that they are too preoccupied with cultivating professional excellence to bother about connectedness.
Fill in the blank with the most appropriate word.
She ______ her pearly white teeth in a broad smile.