The IQ Correlation of Identical Twins Raised Apart Is Higher

question 11

True/False

The IQ correlation of identical twins raised apart is higher than that of fraternal twins raised in the same household.

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Definitions:

T-Distribution

A statistical distribution that occurs when calculating the average of a population with a normal distribution, under conditions where the sample size is small and the population's variance is not known.

Degrees of Freedom

The number of independent values or quantities that can vary in a statistical calculation.

Chi-Square Critical Value

A point on the chi-square distribution that is compared to the chi-square test statistic to determine whether to reject the null hypothesis.

Level of Significance

Level of significance is a threshold in hypothesis testing, denoted as alpha, that determines the probability of rejecting the null hypothesis when it is true.