Based on the Results of a Conservation of Number Experiment

question 14

Multiple Choice

Based on the results of a conservation of number experiment, Piaget concluded that:

• A)Many adults find mathematics difficult
• B)We are born with some understanding of numbers, that is, we have some kind of innate numerical sense
• C)Children who are only a few months old seem to understand addition and subtraction
• D)Children have no sense of numbers and numerical relations until they are about 7 years old
• E)Understanding numbers is achieved with the development of formal operations

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Definitions:

Variance

A measure of variability that indicates the average squared deviation of each number from the mean of a data set, showing how spread out the data points are.

Significance Level

The threshold below which the p-value of test results must fall for the results to be considered statistically significant, typically denoted by alpha (α).

Normal Populations

Populations that follow a normal distribution, characterized by symmetrical bell-shaped curves where mean, median, and mode are equal.

Equal-variance T-test

A statistical test used to compare the means of two groups under the assumption that both groups have the same variance.