Presentation of quantitative data

Summarising data in table

Summary tables are not usually from the raw scores but the data has been converted into descriptive statics

Bar charts

Bar charts are used when data is dodged into categories, other wise knows as discrete information. The bars DO NOT touch each other which shows they are separate conditions

Histograms

In a histogram, the bars touch each other , which shows the x-axis data is continuous rather than discrete. The y-axis represents frequency

Scattergrams

These are used to show associations between co-variables rather than the differences

Normal Distributions

A symmetrical pattern of frequency data that forms a bell shaped pattern. The mean, mode and media all occupy the same midpoint of the curve

Skewed distribution

A spread of frequency data that is not symmetrical, the distributions lean to one side or the other. There are 2 types:

• Positive skew - this is when most of the distributions lean to towards the left of the graph, resulting in a long tail on the right

• Negative skew - this is when most of the distribution la lean towards the right of the graph, resulting in a long tail on the left

Statical tests

Table for statical testing