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Bio 12 Lesson 1.a

Vocab Cards

QuestionAnswer
A sample in which a factor whose effect is being estimated is absent or is held constant, in order to provide a comparison. Control
A test group that is kept neutral and is used as a standard for comparison. Control Group
The observed variable in an experiment or study whose changes are determined by the presence or degree of one or more independent variables. Dependent Variable
A test under controlled conditions that is made to demonstrate a known truth, examine the validity of a hypothesis, or determine the efficacy of something previously untried. Experiment
An additional experiment that is done introducing the variable factor. Experimental Group
A tentative explanation for an observation, phenomenon, or scientific problem that can be tested by further investigation. Hypothesis
A manipulated variable in an experiment or study whose presence or degree determines the change in the dependent variable. Independent Variable
A series of steps taken to accomplish an end Procedure
The precision of a measurement, as measured by the variance of repeated measurements of the same object. Reliability
The number of objects in the sample. Sample Size
Scientific method refers to a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. Scientific Method
A set of statements or principles devised to explain a group of facts or phenomena, especially one that has been repeatedly tested or is widely accepted and can be used to make predictions about natural phenomena. Theory
The degree to which data or results of a study are correct or true. Validity
Created by: Onixa
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