Answer:
A double-blind study is one in which neither the participants nor the experimenters know who is receiving a particular treatment. This procedure is utilized to prevent bias in research results. Double-blind studies are particularly useful for preventing bias due to demand characteristics or the placebo effect.
For example, let's imagine that researchers are investigating the effects of a new drug. In a double-blind study, the researchers who interact with the participants would not know who was receiving the actual drug and who was receiving a placebo.
socialization is a lifelong process of inheriting and disseminating norms,customs and ideologies, providing an individual with the skills and habits necessary for participating with his or her own society. It's the behavioural pattern reinforced by socializing agents of society.
Answer:
The conclusion is that the footprints are Australopithecus afarensis footprints; they are considered as early human.
Explanation:
Australopithecus afarensis are comsidered to be more related to Genus Homo; a classification that includes present day man, Homo Sapiens.
They have characteristics of both ape and human, which includes a flat nose and song protective lower jaw, while having smaller braincase of about one third of that homo sapiens.
It also said that Australopithecus has a slender body, long but strong arm, plus the fingers that are curved like that of human. They are extinct hominin.
