Expressive Vocabulary Increases Greatly

question 16

Multiple Choice

Expressive vocabulary increases greatly

• A) between twelve to eighteen months.
• B) after age two.
• C) between eighteen and twenty-four months.
• D) around twelve months.

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Definitions:

Variability

Indicates the range and dispersion of individual scores from the mean in a dataset.

Confidence Interval

A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter, providing a measure of uncertainty around a sample estimate.

Confidence Interval

A series of values, extracted from data samples, that is presumed to include the value of a not yet identified population attribute.

Sample Size

The number of observations or replicates included in a statistical sample, crucial for the reliability of study results.