Psychology An experimental science Needs evidence to support assumptions Scientific Method.

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Presentation transcript:

Psychology An experimental science Needs evidence to support assumptions Scientific Method

Ask a QuestionForm a Hypothesis Test Hypothesis-Identify best way to gather data

Analyze resultsDraw conclusionsReplicate and form a theory

Surveys, Samples and Populations Survey-people are asked to answer questions about a specific subject. What are the disadvantages of a survey? Population-researchers need to make sure they have the right population. Why is population important? Sample-A part of the population. They must represent the target population.

Methods of Observation Tests-Personality tests Case Study-an in depth investigation of an individual or group. Longitudinal method- studies a group of participants over a long period of time. Naturalistic –observational method-study people in their natural habitat Laboratory method

Correlations Measure of how closely one thing is related to another Positive-one goes up, so does the other Negative-one goes up, the other goes down Zero-there is no correlation shown It describes relationships but does not mean that one thing causes another

Experimental Method Tries to answer cause and effect. Variables-things that can change or vary in an experiment.

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