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In the examples listed above, a nuisance variable is a variable that is not the primary focus of the study but can affect the outcomes of the experiment. [3] They are considered potential sources of variability that, if not controlled or accounted for, may confound the interpretation between the independent and dependent variables .
For example, log scales may give a height of 1 for a value of 10 in the data and a height of 6 for a value of 1,000,000 (10 6) in the data. Log scales and variants are commonly used, for instance, for the volcanic explosivity index, the Richter scale for earthquakes, the magnitude of stars, and the pH of acidic and alkaline solutions.
Self-perception theory (SPT) is an account of attitude formation developed by psychologist Daryl Bem. [1] [2] It asserts that people develop their attitudes (when there is no previous attitude due to a lack of experience, etc.—and the emotional response is ambiguous) by observing their own behavior and concluding what attitudes must have caused it.
Trait ascription bias, the tendency for people to view themselves as relatively variable in terms of personality, behavior, and mood while viewing others as much more predictable. Third-person effect , a tendency to believe that mass-communicated media messages have a greater effect on others than on themselves.
One of the best-known examples of Simpson's paradox comes from a study of gender bias among graduate school admissions to University of California, Berkeley.The admission figures for the fall of 1973 showed that men applying were more likely than women to be admitted, and the difference was so large that it was unlikely to be due to chance.
The researchers can change their approach as needed. Observational research measures behavior directly, rather than the subject's self-reports of behavior or intentions. The main disadvantage is it is limited to behavioral variables. It cannot be used to study cognitive or affective variables.
In psychology, manipulation is defined as an action designed to influence or control another person, usually in an underhanded or unfair manner which facilitates one's personal aims. [1] Methods someone may use to manipulate another person may include seduction, suggestion, coercion, and blackmail to induce submission.
In some disciplines (e.g., psychology or political science), a 'true experiment' is a method of social research in which there are two kinds of variables. The independent variable is manipulated by the experimenter, and the dependent variable is measured.