Research Participants Are Randomly Assigned to Different Groups in an Experiment

question 53

Multiple Choice

Research participants are randomly assigned to different groups in an experiment in order to

• A) minimize chances that participants in any group know each other.
• B) increase chances that participants are representative of people in general.
• C) minimize any differences between groups of participants.
• D) increase chances that the different groups have the same number of participants.

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Definitions:

Realized Niche

The actual conditions and resources in which a species exists due to constraints from other species, such as competition, predation, and availability of resources.

Gleason's Individualistic Model

A concept in ecology suggesting that plant communities are loose assemblages of species coexisting primarily due to similar abiotic requirements rather than biotic interactions.

Community Structure

The organization, composition, and arrangement of species within an ecological community, including their relationships and interactions.

Limiting Resources

Essential resources that are in short supply, thus limiting the growth, abundance, or distribution of an organism or population.