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Naturalistic observations
________ and surveys tend to show that a specific trait and /or behavior often coincides with another trait /behavior.
Replication
________:** repeating the essence of a research study, usually with different participants in different situations, to see whether the basic finding can be reproduced.
independent variables
Experiment:** a research method in which an investigzator manipulates one or more factors (the ________) to observe the effect on some behavior or mental process (the dependent variable)
Illusory Correlation
________:** perceiving a relationship where none exists, or perceiving a stronger- then- actual relationship.
Random assignment
________ allows researchers to minimize the possibilities of preexisting conditions between the different groups.
Hypotheses
________:** a testable prediction, often implied by a theory.
meta analysis
A(n) ________ is an important tool in medical and psychological sciences.
human trials
ALlowing reasearch to be done on animals can help develop and study reactions to different types of treatments before ________.
Scatterplot
________:** a graphed cluster of dots, each representing the values of two different variables.
artificial settings
The principles of the visual system that researchers apply to more complex behaviors that have been developed through many experiments created in ________.
Operational Definition
________:** a carefully worded statement of the exact procedures (operations) used in a research study.
Correlation Coefficient
________:** a statistical indeed of the relationship between two things (from- 1.00 to +1.00)
Independent Variable
________:** in an experiment, the factor that is manipulated, the variable whose effect is being studied.
Naturalistic Observation
________:** A descriptive technique of observing and recording behavior in naturally occurring situations without trying to manipulate and control the situation.
Note 
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