List 4 ways that a researcher can affect his own research and provide examples to illustrate your choices.

example: Children in a day care center all behave in a well-mannered way when they realize they are being watched.-Researchers presence creates ' good subjects'.

photocells convert light energy to electricity

a self-report inventory personality assessment is not very reliable for a psychological test because a patient doing the assessment may exaggerate or under-report in the answers. also, people will tend to be high on desirable behaviors and low on undesirable things.