Reliability of Data Flashcards

1️⃣ Familiarise yourself with the flashcards:

  • Look through all the flashcards to see what's on both sides.
  • Make sure you understand the information on each card. If something's unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

  • Look at the question or prompt on each card and try to remember the answer before flipping it over.
  • Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

  • Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
  • Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

PERSONALISED 1-TO-1 TUTORING

Need more help on this topic? Get 1-to-1 support

Get support with clear explanations, practice and feedback (Ages 5 to 16).

  • DBS-checked tutors
  • Flexible times
  • Parents can be updated

Want an ad-free experience? Subscribe to remove ads

In science, what does it mean if data are reliable?

Reliable data give similar results each time the investigation is repeated.

How can you make your data more reliable in an experiment?

You can repeat the measurements and check that you get similar results.

Why do scientists repeat readings and then work out a mean (average)?

Repeats and a mean make the result more reliable by reducing the effect of odd readings.

How does having a larger sample size affect the reliability of data?

A larger sample makes data more reliable because it is less affected by unusual results from a few individuals.

What pattern in repeated readings suggests the data are reliable?

The readings are close together and show the same pattern or trend.

If two different groups of scientists do the same experiment and get similar results, what does this suggest about the data?

It suggests the data are reliable because the findings can be repeated by others.

What does a wide scatter of points on a graph of repeated measurements tell you about reliability?

It shows the data are less reliable because the results are not consistent.

How is reliability different from accuracy?

Reliability is about getting the same result each time, while accuracy is about how close a result is to the true value.

When you get one result that is very different from your other readings, what should you do to check reliability?

You should repeat the measurement to see if the odd result happens again.

When using data from books or websites, what is one sign that the data are likely to be reliable?

The data are from a trusted scientific source and are similar to results from other studies.