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The z-test requires no assumptions about the shape of the population distributions as long as both n1 and n2 are ? 30.
Developmental Psychologists
Scientists who study the psychological growth and development that occurs throughout a lifespan, from infancy to old age.
Cognitive Changes
Alterations in mental processes such as memory, problem-solving, attention, and language, which can be due to aging, neurological conditions, or psychological disorders.
Social Changes
Transformations or evolutions in the behaviors, cultural values, norms, and social structures within a society over time.
Distinct Stages
Distinct stages refer to separate or clearly differentiated phases within a process or development sequence.
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