For IndividualsFor Educators
ExpertMinds LogoExpertMinds
ExpertMinds

Ace your certifications with Practice Exams and AI assistance.

  • Browse Exams
  • For Educators
  • Blog
  • Privacy Policy
  • Terms of Service
  • Cookie Policy
  • Support
  • AWS SAA Exam Prep
  • PMI PMP Exam Prep
  • CPA Exam Prep
  • GCP PCA Exam Prep

© 2026 TinyHive Labs. Company number 16262776.

    PracticeAQA GCSEAQA GCSE Statistics Higher Tier Paper 2Question 04
    Easy1 markMultiple Choice
    Planning and Designing Statistical InvestigationsdefinitionsreliabilityvalidityHigher

    AQA GCSE · Question 04 · Planning and Designing Statistical Investigations

    Which statistical term means 'the extent to which something gives results that are consistent'?

    Answer options:

    A.

    reliability

    B.

    validity

    C.

    standard deviation

    D.

    unbiased

    How to approach this question

    Recall the definitions of the key statistical terms provided. The question is asking for the term that relates to consistency of results. Match this definition to one of the options.

    Full Answer

    A.reliability✓ Correct
    **Reliability** is about the consistency of a measurement. If you were to repeat the measurement or experiment under the same conditions, would you get the same or very similar results? For example, a reliable weighing scale will show the same weight each time you step on it (within a very small margin). \n**Validity**, in contrast, is about accuracy. It assesses whether the measurement actually captures what it is intended to capture. The weighing scale might be reliable (consistent) but not valid if it is consistently off by 2 kg.

    Common mistakes

    ✗ Confusing reliability with validity. This is a very common mistake. Remember: Reliability = Consistency, Validity = Accuracy.
    Question 03All questionsQuestion 05.1

    Practice the full AQA GCSE Statistics Higher Tier Paper 2

    43 questions · hints · full answers · grading

    Sign up freeTake the exam

    More questions from this exam

    Q01A fair coin is tossed four times. Circle the probability of getting 'tails' on all 4 tosses.EasyQ02Which one of these is **not** a measure of spread?EasyQ03Olivia wants to obtain a systematic sample of size 40 from a population of 2000 competitors in a ...EasyQ05.1BMI stands for Body Mass Index and is based on your height and mass. Louise and William have this...EasyQ05.2The graph shows the average adult BMI over recent years. A healthy BMI is considered to be betwee...Medium
    View all 43 questions →