An Artifact Such as Demand Characteristics Can Threaten Both the Internal

question 37

True/False

An artifact such as demand characteristics can threaten both the internal and the external validity of a research study.

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Definitions:

Dizygotic Twins

Also known as fraternal twins, are twins that develop from two different eggs fertilized by two different sperm cells.

Fraternal Twins

Also known as dizygotic twins, these are siblings born at the same time who have developed from two different eggs fertilized by two different sperm, thus they are genetically distinct and not identical.

Behavioral Geneticists

Behavioral geneticists study the role of genetics in influencing human behavior, including how genes interact with the environment to affect individual differences.

Natural Selection

The process by which organisms better adapted to their environment tend to survive and produce more offspring.