The research error described above is an example of selection bias.
Selection bias takes place when, from a population of interest, a group of individuals is selected in order to construct a sample but without a proper randomization. The result is a sample which is not representative of the underlying population.
According to the example, the target population of the research comprises all students but the sample only includes boys. Hence, selection has not been random because it followed a gender criteria, and the results obtained using it cannot be applicable to the whole population because they are affected by a selection bias.
Answer:
Natural resources are things that exist without any actions from human-kind. This is something like wood or stone.
However artificial resources are things that are man-made. These are things such as paper.
False.
There is no guaranteed way to eliminate every barrier without the proper insight. With questions like these, pay attention to absolute statements like "all," "every," or "none" in many cases, answers like these are simply fallacies.<span />
Answer:
Lord Dunmore's proclamation offered freedom to specific people who were able to flee from rebel masters and decided to serve the crown. The sole purpose of this strategy was to disable rebellion instead of the humanitarian, although it still effected oppositely.
His proclamation declared martial law and gave hope and freedom to slaves of America. This brought about economic and political stability in Virginia.
I hope the answer was helpful.