The Standard Deviation of a Sample Is Estimated to Be

question 30

Multiple Choice

The standard deviation of a sample is estimated to be 80 and the standard error has been calculated to be 5. What size of sample will the researcher need to ensure a 90% confidence interval (Z=1.64) ?

• A) 256
• B) 420
• C) 688
• D) 1640

Grasp the concept of developmental change and factors influencing these changes.

Understand the significance of individual differences and stability over time in development.

Recognize the role of sensitive periods and the evolutionary perspective on development.

Distinguish between cause and correlation in interpreting research findings.

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Definitions:

Supernormal Stimulus

An exaggerated artificial stimulus that elicits a stronger response than the natural stimulus for which an organism is programmed.

Early Instinct Theories

Theories proposing that behaviors are primarily driven by innate instincts, focusing on the innate, biological determinants of behavior.

Genetic Programs

The predetermined sequences of development and behavior encoded in an organism's DNA.

Arbitrary Lists

Random or unstructured collections of items or elements without a specific rationale for their order or selection.