The bill of rights and the constitution
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:
Carter G. Woodson.
Explanation:
Carter G. Woodson was an author and historian. He is known as the “Father of Negro History” because he defended that education could transform society, improve race relations and benefit the lower classes. He was the first African American born of slaves to earn a PHD. He also defended that all people should learn black history and because of that he celebrated Negro History Week.
