History, Maturation, and Instrumentation Are Especially Threatening to Studies When

question 21

Multiple Choice

History, maturation, and instrumentation are especially threatening to studies when _____.

• A) order effects also exist
• B) environmental variables are minimal
• C) the series of treatments extends over a long period of time
• D) there are big individual differences between participants

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Definitions:

Ellipse

A plane curve encircling two centers where the total distance from any point on the curve to the two centers remains unchanged.

Center

The midpoint or central point of a geometric shape, or a point that is equidistant from all points on the circumference of a circle or sphere.

Hyperbola

A type of smooth curve lying in a plane, defined as the locus of all points that satisfy the equation of the difference of distances from two fixed points (the foci) being constant.

Graph

A visual representation of data or mathematical functions, often plotted on coordinate axes.