BIOLOGY: Module 1, 2, 3 & 4

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year 11

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5 Terms

1
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what is reliability?

when an experiment is repeated, with similar & consistent results

2
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what is accuracy?

how close a result is to the ecpected value OR using the most precise measuring instruments

3
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what is validity?

if correct constant variables are controlled, so that only variable changed is the independent variable

4
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what is the independent variable?

the variable that is manipulated within the experiement

5
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what is the dependent variable?

the variable which changes, is observed & measured and depends on the independent variable