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15 cards from this deck
Factors that can change or be changed during an investigation
The factor you deliberately change or control in an experiment
What you measure to see the effect of changes
Factors kept exactly the same across all parts of an experiment
Only change ONE variable at a time
How consistent results are when the same experiment is repeated
How close measured values are to the true or actual value
How close repeated measurements are to each other
Unpredictable mistakes that occur by chance
Consistent mistakes affecting all measurements the same way
Take multiple measurements and calculate an average
Standard comparison identical except doesn't receive the treatment
Neither participants nor researchers know who gets real treatment
Prevents bias by giving all subjects equal chance of being chosen
Larger samples give more trustworthy conclusions than smaller ones
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