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Unit Zero: Research Methods in Psychology (New CED) 2026 | Study Guide, Practice Questions, Answers, Rationales & Exam Review

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Unit Zero: Research Methods in Psychology (New CED) 2026 study material covering scientific inquiry, research methods, experimental design, variables, sampling, data analysis, statistical concepts, research ethics, correlation, and interpretation of psychological studies. Includes organized study notes, practice questions, answers, and detailed rationales to support AP Psychology coursework, revision, exam preparation, and comprehensive research methods review.

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Unit Zero: Research
Methods in Psychology
(New CED) 2026 | Study
Guide, Practice Questions,
Answers, Rationales &
Exam Review | Complete
Ethics Study Guide



Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included

, Psychology the scientific study of mental processes and behavior.




Mental Processes Thoughts, feelings, and motives that each of us experiences privately but that
cannot be directly observed.



Behavior Any action that people can observe or measure




Confirmation Bias The tendency to favor information that confirms your existing beliefs.




Hindsight Bias The feeling after something happens that you knew it was going to happen.




Overconfidence Being more confident than correct; overestimating the accuracy of your beliefs.




Empirical Evidence Information from experiments or observations rather than theories.




Scientific Method A step-by-step method for conducting research.




Hypothesis A prediction that you can test through study and experimentation.




Falsifiable Something that can be proven wrong through tests.




Peer Review The process of having other experts examine your work to check its validity.




Replication Repeating a study to see if the same results are obtained.

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