CH 1 Psychology Notes 8/23 studies

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Quantitative research

studies whose finding are mainly the product of statistics. can measure it with a number

External validty

the extent to which the results can be generalized to different populations, settings, conditions, ex. animal research claimed to apply to humans as well

internal validity

the results of the dependent variable are a course of what you have done to the independent variable

independent variable

variable that is manipulated. The amount of drug giver, amount of sleep, etc.

dependent variable

whats being studied or measured. The effects of drugs given

Reliability

would results be the same if the test was done again

Double blind study

Neither the subjects or the experimenter knows who receives treatment

confounding variables

Threats to internal validity

Control

Treatment is absent

experimental mortality

loss of subjects

experimental

receives treatment

Biased selections ex.

Age, race, economic status (Demographics)

qaulitative

Beauty, softness of skin, etc.

Maturation

Change in subject based on time of experiment

Validity

Does it measure what it claims to measure?


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