Phillipe, a Researcher, Examined the Effect of Lighting on Learning

question 61

Multiple Choice

Phillipe, a researcher, examined the effect of lighting on learning. Randomly assigned participants learned material while using a 100-watt or a 125-watt bulb. He found no differences between the two groups. The nonsignificant results may have occurred because of _____.

• A)a costly measure of learning
• B)insufficient strength of the manipulation
• C)selection differences
• D)the use of staged manipulation

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Definitions:

Population Age Structure Diagrams

Graphical representations that illustrate the distribution of various age groups in a population, which affects growth and social services.

Demographically Divided

Separated or categorized based on characteristics of populations, such as age, race, or income.

Crude Death Rate

A statistical measure representing the number of deaths in a given population, per 1,000 individuals, within a specific time period (usually one year).

Birth Rate

The quantity of live births annually for every thousand people in the population.