Yvette, an Investigator Who Is Interested in the Effectiveness of Various

question 21

Multiple Choice

Yvette, an investigator who is interested in the effectiveness of various memory strategies, instructs randomly assigned participants to use either imagery or repetitive silent speech to remember a list of 20 words. Two weeks later, she tests these participants for how many words they can recall. The imagery group recalls an average of 2.6 words, while the repetition group recalls an average of 1.9 words. She concludes that there is no difference in the effectiveness of these memory strategies because the results are not statistically significant. Is this a reasonable conclusion?

• A)Yes, because no significant results mean there is no relationship between the variables.
• B)Yes, because the level of processing memory is the same for all individuals.
• C)No, because the participants were randomly assigned to the groups.
• D)No, because a dependent variable measured after a two-week delay may lack the sensitivity to detect a difference.

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Definitions:

Marginal Resource Cost

The additional cost incurred by using one more unit of a resource in the production process, often linked to labor or material inputs.

Labor Market

encompasses the supply of labor (workers seeking employment) and demand for labor (employers seeking workers) within an economy, influencing wages and employment levels.

Monopsonistic Labor Market

A labor market characterized by a single large buyer of labor, which results in lower wages and decreased employment levels compared to competitive markets.

Competitive Labor Market

A market where multiple firms compete to hire workers, and no single employer has the power to influence wages or employment conditions significantly.