The Median of a Sample Will Always Equal the

question 6

Multiple Choice

The median of a sample will always equal the

• A) (Q1 + Q3)/2.
• B) square root of the variance.
• C) 50th percentile.
• D) (smallest value + largest value)/2.

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Definitions:

Object Permanence

The understanding that objects continue to exist even when they cannot be seen, heard, or touched, typically developed during infancy.

Secondary Circular Reactions

Repetitive actions in infants aged 4-8 months, centered around the infant's own body, demonstrating the beginning of intentionality.

Primary Circular Reactions

A concept in child development where an infant learns to reproduce an event that initially occurred by accident (e.g., sucking their thumb).

Centration

A cognitive limitation in early childhood, where a child focuses on one aspect of a situation while ignoring others.