An Educational Psychologist Is Interested in Comparing Two Educational Techniques

question 241

Multiple Choice

An educational psychologist is interested in comparing two educational techniques in a sample of preschool children.In part because she believes that one technique might be more effective than the other,children are randomly assigned to the two techniques so that every child has the same opportunity to be assigned to the more effective technique.Randomly assigning students to groups satisfies which feature of ethical research?

• A)external validity
• B)beneficence
• C)being just
• D)respecting persons

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Definitions:

Construction Company

A business entity focused on the building of residential, commercial, or industrial structures, infrastructure projects, and associated activities.

Conditional Probabilities

The chances of an event's occurrence, predicated on the fact that another event has happened.

Bayes' Law

A theorem using probability to update predictions or beliefs in light of new evidence.

Probability Tree

A diagram that shows the possible outcomes of a series of related probabilities.