RESEARCH METHODOLOGY

Detailed explanation-1: -The strength of opportunity sampling is that it is quick and convenient and this saves time and money. Opportunity sampling may remove some bias because the researcher can “screen out” inappropriate people. For example, Sherif would not let school principals recommend their favourite students.

Detailed explanation-2: -Researchers choose simple random sampling to make generalizations about a population. Major advantages include its simplicity and lack of bias. Among the disadvantages are difficulty gaining access to a list of a larger population, time, costs, and that bias can still occur under certain circumstances.