Rhonda Designs an Experiment in Which Half of Her Students

question 65

Multiple Choice

Rhonda designs an experiment in which half of her students are randomly assigned to view a sad movie and half to view a comedy. All of the students then rate their liking for the school at one, two, and three weeks after viewing the movie. This design is:

• A) An interaction design
• B) A nonequivalent posttest-only design
• C) A within-participants design
• D) A factorial design based on a mixed model

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Definitions:

Rhizome

A horizontal underground stem that bears leaves and buds and often serves as a storage organ and a means of asexual reproduction (e.g., iris).

Horizontal

Refers to something that is arranged or lying flat, parallel to the plane of the horizon or perpendicular to the vertical.

Aboveground

Referring to the part of a plant or structure that is visible or exists above the surface of the soil or ground.

Endosperm

The nutritive tissue inside the seeds of most flowering plants, surrounding and nourishing the embryo.