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Psychology Research Definitions and Concepts You ShouldKnow

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11. Hawthorn Effect

The Hawthorn effect is a term referring to the tendency of some people to work harder and perform better when they are participants in an experiment. Individuals may change their behavior due to the attention they are receiving from researchers rather than because of any manipulation of independent variables.,,

12. Longitudinal Research

Longitudinal research is a type of research method used to discover relationships between variables that are not related to various background variables...

13. Naturalistic Observation

Naturalistic observation is a research method commonly used by psychologists and other social scientists. This technique involves observing subjects in their natural environment. This type of research is often utilized in situations where conducting lab research is unrealistic, cost prohibitive or would unduly affect the subject's behavior?

14. Random Assignment

Random assignment refers to the use of chance procedures in psychology experiments to ensure that each participant has the same opportunity to be assigned to any given group?

15. Reliability

Reliability refers to the consistency of a measure. A test is considered reliable if we get the same result repeatedly. For example, if a test is designed to measure a trait (such as introversion), then each time the test is administered to a subject, the results should be approximately the same. Unfortunately, it is impossible to calculate reliability exactly, but there several different ways to estimate reliability?

16. Replication

A term referring to the repetition of a research study, generally with different situations and different subjects, to determine if the basic findings of the original study can be generalized to other participants and circumstances?

17. Selective Attrition

In psychology experiments, selective attrition describes the tendency of some people to be more likely to drop out of a study than others. This tendency can threaten the validity of a psychological experiment?

18. Validity

Validity is the extent to which a test measures what it claims to measure. It is vital for a test to be valid in order for the results to be accurately applied and interpreted.

Video: What is Validity in Psychology Research?

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