Examlex
Dr. Martin is conducting a study of infant attachment. Her hypothesis is that infants who have not yet developed some concept of object permanence will not show specific attachments to caregivers. Which theoretical view of attachment does Dr. Martin hold?
Population Variance
A measure of the spread of a population's values, calculated as the average squared deviation from the population mean.
Confidence Interval
A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter, given a specified level of confidence.
Critical Value
A point on the scale of the test statistic beyond which we reject the null hypothesis.
Standard Deviation
An indicator that evaluates how much the data in a set diverges or spreads out in comparison to the average value, showing the extent of distribution of the observations.
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