A Researcher Decides to Run an Experiment to Study the Effects

question 49

Essay

A researcher decides to run an experiment to study the effects of two independent variables on learning She will vary background noise by playing or not playing a radio while subjects study a list of words She will vary the length of the list to be learned: Half the subjects will try to learn a short list; half will try to learn a long list in the same amount of time.The dependent variable is the percentage of words recalled.Take this hypothetical experiment and do the following:
a.Describe the experiment using shorthand notation for factorial designs.
b.Diagram the experiment using a design matrix.
c.Identify three extraneous variables you think might affect the outcome of this
study.

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Definitions:

Absorption Costing

A strategy in accounting where the cost of a product encompasses all the production expenses: direct materials, direct labor, and manufacturing overheads, regardless of them being fixed or variable.

Net Operating Income

An indicator of a firm's earnings derived solely from its principal business activities, without accounting for interest and tax expenses.

Last Year

Refers to the previous calendar or fiscal year.

Absorption Costing

A method of costing that includes all manufacturing costs - direct materials, direct labor, and both variable and fixed manufacturing overhead - in the cost of a product.