Investigating In Science (LC 2027) (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the independent variable in an experiment?
What is the independent variable in an experiment?
The factor deliberately changed
What is the dependent variable in an experiment?
What is the dependent variable in an experiment?
The factor you measure to see the effect
What are controlled variables in an experiment?
What are controlled variables in an experiment?
Factors kept exactly the same
How many variables should you change at a time in an experiment?
How many variables should you change at a time in an experiment?
Only ONE variable
What does reliability mean in experiments?
What does reliability mean in experiments?
Consistency when repeated
What does accuracy describe in measurements?
What does accuracy describe in measurements?
Closeness to the true value
What does precision refer to in measurements?
What does precision refer to in measurements?
How close repeated measurements are to each other
What are random errors in experiments?
What are random errors in experiments?
Unpredictable mistakes by chance
How can you reduce systematic errors?
How can you reduce systematic errors?
Calibrate equipment properly
What is the purpose of a control experiment?
What is the purpose of a control experiment?
To provide a standard comparison
What is double blind testing?
What is double blind testing?
Neither participants nor researchers know who gets real treatment
Why are larger sample sizes better in experiments?
Why are larger sample sizes better in experiments?
They give more trustworthy results