Helen Proposed a New Theory of Child Development

question 39

Multiple Choice

Helen proposed a new theory of child development.Using this theory, she has successfully described and explained past behaviours, but she is unable to predict or explain new observations.How should Helen's theory be categorized?

• A)It is a superior theory because it describes and explains past behaviour, which is more than most theories do.
• B)It is a weak theory because it is clearly based on flawed methodology since it cannot predict future behaviour.
• C)It is an adequate theory because it both describes and explains.
• D)It is a weak theory because if it doesn't predict or explain new observations, it is of little value.

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the values differ from the mean.

T-Distribution

A probability distribution used in statistics that arises when estimating the mean of a normally distributed population in situations where the sample size is small and population variance is unknown.

Confidence Interval

A range of values, derived from the sample data, that is believed, with a certain degree of probability, to contain the true population parameter.

Margin Of Error

An estimate of the amount by which an observed sample result may differ from the true value, providing a confidence interval for the estimation.