Evaluation Keywords

Reliability

Validity

Accuracy

Enter Password

Precision

Apparatus

quiz

Evaluation Keywords

Start

Question 1/10

Question 2/10

Question 3/10

Question 4/10

Question 5/10

Question 6/10

Question 7/10

Question 8/10

Question 9/10

Question 10/10

Well done!

Now you're ready to evaluate your own investigation, making use of these keywords. Ready to go deeper? Proceed to the next page!

Precision

Precision has two similar but slightly different meanings.1. How small your increments are. 2. How close repeats of the same IV value are. See examples below for clarification.

See examples

Reliability

Reliability is a measure of how sure you are that if you, or somebody else, repeated your investigation that you would get the same results. A method is more reliable if it has been repeated more times (with similar results each time).

See examples

Apparatus

Precision describes how close repeated measurements are to each other, even if they are not close to the true value. High precision means your data are tightly grouped, showing little variation due to random error.

Improvements

Accuracy

Accuracy describes how close a measurement is to the true or accepted value. High accuracy means your results are correct in relation to a known standard, not just consistent with each other.

See examples

Improvements

Validity

Validity describes whether an experiment actually measures what it is intended to measure. A valid investigation has a fair test design, with all relevant variables controlled so that only the independent variable affects the results.

Click for examples