Examlex
Discuss the heredity versus environment issue of intelligence. Explain how the twin study method and adoption method have contributed to our understanding of how both heredity and environment play an important role in intelligence.
Significant
Pertaining to results in statistical analysis, significant means the findings are unlikely to have occurred by chance and indicate a real effect or relationship.
Z-statistic
A statistical measure that quantifies the difference between a sample statistic and its population parameter, measured in units of the standard deviation.
Z-test
A statistical test used to determine whether there is a significant difference between the mean of a sample and the mean of a population, or between the means of two populations.
Z-statistic
A type of standard score that indicates how many standard deviations an element is from the mean of its distribution.
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