A Developmental Psychologist Conducted an Experiment to Examine the Effect

question 2

Multiple Choice

A developmental psychologist conducted an experiment to examine the effect of type of text used on math performance across age groups. Fifth grade and college students studied age-appropriate math concepts using either a traditional hard copy book text or an e-text available on the web. Performance on a math test of the concepts studied was then measured for all students. The appropriate statistical test to analyze the data in this study is ______.

• A) a one-sample t test
• B) an independent samples t test
• C) a paired/related samples t test
• D) an ANOVA

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Definitions:

Productivity

The measure of the efficiency of production, often quantified as the ratio of outputs produced to inputs used in the production process.

Output Effect

The output effect is the impact on total revenue generated by selling an additional unit of a product or service, assuming the price remains constant.

Production Costs

The total expenses incurred in the process of creating and manufacturing a product.

Substitution Effect

The economic principle that as the price of a good increases, consumers will replace it with cheaper alternatives, whereas if the price decreases, the good will become more preferable.