Examlex
Structural lag occurs when social structures, such as work and education, are not congruent with the changes in the aging population and older people's lives.
Significance Level
A statistical measure that indicates the probability of a particular result occurring by chance, commonly used in hypothesis testing to determine if results are statistically significant.
Internal Validity
The extent to which a research study can demonstrate a causal relationship between variables, free from the influence of external factors.
External Validity
External validity refers to the extent to which the results of a study can be generalized or extended to other situations, people, settings, and measures.
Experimenter Effects
Effects produced or influenced by clues to the hypotheses under examination, inadvertently communicated by the experimenter.
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