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Psychology 2.1

QuestionAnswer
Scientific method Organized way of using experience and testing ideas in order to expand and refine knowledge
Theories Formulations of apparent observed relationships among events
Hypothesis Specifics statement about behavior or mental processes that’s tested through controlled methods; experiments
Population Targeted group for study
Sample Individuals from a segment of the population
Correlations One variable is related to the other
Correlation direction: positive As one variable increases the other increases Ex: height & shoe size
Correlation direction: negative As one variable increases the other decreases Ex: size of car & gas mileage
Correlation strength Mathematically expressed as a correlation; varies between +1.00 & -1.00
The closer the number is to one... The stronger the relationship between two variables (positive or negative)
The closer the number is to zero (0)... The weaker the relationship between two variables
Correlation does NOT mean... Causation
Experiments Helps answer the question “why?” Involves experimental variables manipulated by the researcher
Independent variable Manipulated by the researcher so effects may be determined Ex: type of cookie
Dependent variable Measured outcome or result Ex: amount eaten
Experimental group Obtain treatment
Control group Do NOT receive treatment
What are blind and double blind experiments? Participants are offered a Placebo or “sugar pill” as if it were an experimental drug. It controls for the effect of expectations.
Blind experiments Participants do not know if they’re receiving the experimental drug or placebo
Double blind experiments Neither the participants nor the experimenters know who has obtained the experiment drug or placebo
Created by: Nina Nickelson
Popular Psychology sets

 

 



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