The following output is for a second-order polynomial regression model where the independent variables are x and x2 (x^2 in output). Some of the output has been omitted. 
Considering the above information, it is clear that the second-order polynomial model will be a more effective regression model for explaining the variation in the y variable than would a linear regression model involving only one independent variable, x.
Definitions:
Behavioral Organism
A concept in psychology and sociology that views human behavior as the result of interactions between individuals and their environments.
Cultural System
An organized set of symbols, values, norms, and practices shared by a group that shapes their view of the world and their behavior within it.
Personality System
A term describing the organized set of characteristics and behaviors that distinguishes an individual and influences their interactions and adaptations to their social environment.
Latency
A period of inactivity or delay before a process or response initiates following a stimulus.
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