The Leakeys made one of the first discoveries that early hominids possibly originated in Tanzania, Africa not Asia (which what anthropology thought at first).
Answer:
Selection bias
Explanation:
Selection bias occurs because the sample that is taken is not representative of the general population.
If a sample is taken from the undergraduate students you can only generalize to undergraduate students.
Say that you want to know which is the most popular baseball team in the country and you take a sample from New York, and that give a result that 60% of the sample supports the Yankees. If you say "60% of americans support the Yankees" you will be commiting an error because your sample is not representative, and Californians may not share that result (for example).
Hitting, making fun of one’s appearance, harassing someone online
Answer:
The non-equivalent control group design.
Explanation:
Non-equivalent control group design: In the psychological or scientific experiment the term 'non-equivalent control group design' is defined as the of research in which the participants' distribution or assignment is not controlled by the experimenter or the researcher.
The quasi-experimental research design is a type of non-equivalent control group design and does not receive any treatment in an experiment.
In the question above, the statement signifies the non-equivalent control group design.