0 Scientific Accuracy BELR

Accuracy:

• is how consistent measurements are when they are made in the same way

• measures how close results are to the standard or known value

• measures what it aims to measure

• is how close results are to one another

This target shows...

• high accuracy, high reliability

• high accuracy, low reliability

• low accuracy, high reliability

• low accuracy, low reliability

This target shows:

• high accuracy, high reliability

• high accuracy, low reliability

• low accuracy, high reliability

• low accuracy, low reliability

Based on the table, which student has the most accurate data?

• Student A

• Student B

• Student C

• Cannot be determined

For that student, which Trial had the most accurate result?

• Trial 1

• Trial 2

• Trial 3

Which is the most accurate value for measurement of the volume?

• 50 mL

• 48 mL

• 43 mL

• 40 mL

Which is the most accurate measurement of the volume?

• 67 mL

• 64 mL

• 63.5 mL

• 63 mL

This is an example of...

• accurate, reliable, valid

• accurate and valid, but not reliable

• not accurate, not valid, not reliable

• reliable, but not accurate or valid

Choose the most accurate set of data for measurements of two separate 1 kg masses:

• 1.00

  1.02

  0.94

  1.06

• 1.00

  1.01

  0.98

  1.03

• 2.01

  2.02

  1.94

  2.12

• 2.00

  2.02

  1.98

  2.04