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Data Handling and Analysis

Presentation and display of quantitative data

  • 3 things to know
  • Paper 2

Overview

Bar charts, histograms, scattergrams, tables and line graphs, and what each is appropriate for.

What you need to know

Answer each one before you reveal it.

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Key term

Why does a bar chart have gaps between its bars when a histogram does not?

Key term

What does a scattergram display?

Key term

How do tables and line graphs present data?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Name four methods used to present and display quantitative data in psychology research.

    Model answer

    Graphs, tables, scattergrams, and bar charts.

  2. 2

    What type of data do graphs help to present in psychological research?

    Model answer

    Quantitative data.

  3. 3

    Name one method used to present and display quantitative data in psychology research that organises numerical information into rows and columns.

    Model answer

    Tables

  4. 4

    What type of data display would be most appropriate for presenting precise numerical values alongside participant categories or experimental conditions?

    Model answer

    A table, as it allows exact values to be recorded and compared systematically across rows and columns

  5. 5

    When would a researcher choose to use a scattergram to display their data?

    Model answer

    When investigating a correlation between two continuous variables to visualise the strength and direction of the relationship

  6. 6

    What does the pattern of points on a scattergram indicate about the data?

    Model answer

    It indicates the type of correlation (positive, negative, or none) and the strength of the relationship between the two variables

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AThe mean is the arithmetic average of a data set.
BEvery value in the set is added together.
CThe total is divided by the number of values.

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