According to the judgment or decision of the researcher, a given number of respondents is selected from a specific group, and the population under study is predetermined in a non-random manner.
According to the judgment or decision of the researchers, a given number of respondents are selected from a specific group to predetermine the studied population in a non random way.<br>
Based on the researchers' judgment or decision to select a given number of respondents from a specific group, the population studied was pre-determined in a non-random manner.