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14 Cards in this Set
- Front
- Back
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What is biology?
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the study of living things
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What is the scientific method and what are the steps in ?
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a flexible, adaptable, and efficient pathway to understanding the world
1 - make observation that leads to a question 2 - formulate a hypothesis 3 - devise a testable predition 4 - conduct a critical experiment 5 - draw conclusions and make revisions |
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Define Hypothesis
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a proposed explanation for a phenomenon; to be useful it must generate a testable prediction
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Define Theory
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a hypothesis for natural phenomena that is exceptionally well-supported by the data. Withstood the test of time and is unlikely to be altered by any new evidence. ;
Repeatedly tested and broader in scope than hypothesis. |
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Define treatment
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any experimental condition applied to individuals
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Define Experimental Group
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a group of individuals who are exposed to a particular treatment
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Define Control Group
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A group of individuals who are treated identically to the experimental group with the one exception: they are not exposed to the treatment
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Define Variable
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characteristics of the experimental system that are subject to change
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Define Blind experimental design
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the experimental subjects do not know which treatment (if any) they are receiving.
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Define Double-blind experimental design
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neither the experimental subjects nor the experimenter knows which treatment the subject is receiving
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Define Independent Variable
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some measurable entity that is available at the start of a process and whose value can be changed as required
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Define Dependent Variable
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created by the process being observed and whose value cannot be controlled
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Define Pseudoscience
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individuals make scientific-sounding claims that are not supported by trustworthy, methodical scientific studies
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Anecdotal observations
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based on only one or a few observations, people conclude that there is or is not a link between two things.
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