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LE/Biology Regents

Must Know to Pass NYS LE/Biology Regents

QuestionAnswer
Observation: What is seen or measured.
Inference: A conclusion based on observation or evidence.
Hypothesis: An untested prediction. A good hypothesis states both cause and effect ("if-then" statement)
Theory: A broad explanation of natural events that is supported by strong evidence.
Controlled Experiment: Compares the results of an experiment between two (or more) groups.
Experimental Group: Group being tested or receiving treatment.
Control Group: "Normal" group. Should be identical to experimental group in ever way except one; it doesn't receive the treatment.
Placebo: A sugar pill or other "fake" treatment give to the control group so subjects don't know which group their in.
Independent Variable: Variable that is being tested. In a graph the independent variable is always plotted on the X axis.
Dependent Variable: Variable that is measured at the end of an experiment; the results (ex:does patient get better?) The dependent variable is always plotted on the Y axis.
Created by: mmccrumb15
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