A Sample with a Mean of M = 40 and a Variance

question 15

Multiple Choice

A sample with a mean of M = 40 and a variance of s² = 20 has an estimated standard error of 1 point.How many scores are in the sample?

• A)4
• B)5
• C)20
• D)21

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Definitions:

Deferred Imitation

The ability to imitate a modeled act after a delay, indicating the presence of memory and cognitive skills.

Preferential-Looking

A research technique used in developmental psychology to study visual attention and preferences in infants by measuring how long they look at different stimuli.

Habituation Research

The study of the psychological and physiological processes involved in becoming accustomed to a stimulus through repeated exposure.

Perceptual Abilities

The capacity to perceive, interpret, and understand sensory information.