a method of investigation involving observation and theory to test scientific hypotheses
an explanation using an integrated set of principles that organizes and predicts observations
a proposal intended to explain certain facts or observations
systematic investigation to establish facts; reliability, accuracy, validity
a collection of facts from which conclusions may be drawn
repetition of an experiment to confirm results
A factor that can change in an experiment
descriptive, correlations, and experiment
identify and quantify variables so they can be measured
involves observing and noting behavior in order to provide a systematic and objective analysis; advantages= real world setting; disadvantages= bias observations, observer presence can change behavior
Observing and recording behavior in naturally occurring situations without trying to manipulate and control the situation.
study where researcher s actively involved in the situation
a research in which the same people are restudied and retested over a long period; advantages= info about the affects of age on the same people;disadvantages= expensive, takes a long time
systematic errors in observation that occur because of an observer's expectations
a study in which people of different ages are compared with one another;advantages= faster and less expensive; disadvantages= unidentified variables may be involved
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