Learning objective

Understand measures of spread, specifically how to determine the range, defined as the difference between the highest and lowest values in a data set.

Read the explanation, check the common trap, then practise with flashcards and questions.

Practise this topic Read the exam answer Topic hub

Exam focus

Read the explanation.
Check key terms.
Practise with linked questions.

Cambridge IGCSE PsychologyResearch methods

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Quick explanation

Understand measures of spread, specifically how to determine the range, defined as the difference between the highest and lowest values in a data set

This point belongs to Use and structure of data tables, including:, especially Use and structure of data tables, including: outcomes.
You need to be able to understand measures of spread, specifically how to determine the range, defined as the difference between the highest and lowest values in a data set.
The key ideas to know are Define and Explain.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DefineExplain

Why it matters

This objective helps connect Use and structure of data tables, including: outcomes to exam-style questions, flashcards, and revision notes for Use and structure of data tables, including:.

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