# Psychology, G541, Data Analysis Revision Notes

- suggest appropriate descriptive statistic/graphical representations of data (no inferential statistics required for this unit)
- draw conclusions from data/graphs
- sketch summary tables/graphs
- identify and describe the differences between qualitative and quantitative data
- suggest appropriate descriptive statistics for data in source material (mean, median, mode)
- sketch appropriate summary tables/graphs from data in source material (bar charts, scattergraphs

- Created by: Ellie Jones
- Created on: 09-05-15 12:16

First 238 words of the document:

AS Psychology - G541 Psychological Investigations Revision Notes

Data Analysis

Specification Reference:

3.1 The data produced by a piece of research

Candidates should be able to:

· suggest appropriate descriptive statistic/graphical representations of data (no inferential

statistics required for this unit)

· draw conclusions from data/graphs

· sketch summary tables/graphs

· identify and describe the differences between qualitative and quantitative data

· suggest appropriate descriptive statistics for data in source material (mean, median, mode)

· sketch appropriate summary tables/graphs from data in source material (bar charts,

scattergraphs)

Data Types:

Quantitative Qualitative

· Numerical value · Not numerical value, `describes'

+Easy to analyse, can perform statistical tests +Represents complexity of human behvaiour

+Easy to detect patterns and produces neat +Provides rich detail

conclusions

-Over simplifies reality -More difficult to detect patterns or reach

conclusions

-No insight, lacks detail -Subjective

Graphs and Charts:

1. HISTOGRAMS - used with continuous data, requires frequency density

2. BAR CHARTS - shows frequency data, quantitative data

3. SCATTERGRAPH - used with continuous data, shows correlation

Descriptive Statistics:

Measures of central Mean Add values, divide by +Makes use of all data

tendency number of values

-Misrepresentative if

extreme values

Median Middle value in ordered +Not affected by extreme

list values

-Doesn't take into

account all values

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