Random Assignment Is a Defining Feature of an Experiment

question 66

Multiple Choice

Random assignment is a defining feature of an experiment.It means that

• A) participants are able to select the particular experimental manipulations they wish to experience.
• B) participants were randomly selected from the population of interest.
• C) whether participants are in one condition or another is determined at random.
• D) participants are assigned to the experimental conditions on the basis of their pre-existing differences.

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Definitions:

Active Transport

The movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy input usually in the form of ATP.

Primary Eudicot

A group within the angiosperms characterized by seeds with three protective coverings.

Apical Meristem

A region found at the tips of roots and shoots in plants where cells are undifferentiated and capable of division, leading to growth in length.

Root Cap

A protective structure at the tip of a plant root that guards the growing tip and aids in penetrating the soil.