Term
Experimental Design Method |
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Definition
A systematic method of investigation using experimentation, observation, and deductive reasoning (making inferences.) |
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observations using the five senses |
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Quantitative Observations |
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observations using numbers, measuring tools, and amounts |
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an interpretation or explanation using observations and prior knowledge |
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a possible explanation for observations that relate to a scientific question |
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any factor in an experiment that can change |
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Manipulated (independent) Variable |
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the variable that the experimenter changes |
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Responding (dependent) Variable |
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the variable that changes as a result of the independent variable being changed; a response |
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the variables that remain the same each time the experiment is conducted |
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the number of times an experiment is repeated ... to eliminate errors |
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the group(s) that receive special treatment or are changed in some way |
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the group that the others are compared to or the group that receives no special treatment |
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mistakes that skew the results that are unrelated to the variable that was manipulated |
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facts, figures, and other evidence gathered through observation |
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finding the mean, median, mode, and best from the data collected. Explanation of skewed data and possible reasons for experimental errors |
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the average of the data ... add the numbers and divide by the number of data collected |
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the middle number ... rank the data from smallest to largest and choose the middle ... if an even amount, average the two in the middle |
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the most frequently occuring number in a set of data |
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an average of the mean median and mode |
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Definition
a well tested scientific concept that explains a wide range of observations |
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