Data Presentation Flashcards
What are the 4 main ways of presenting data?
Histograms.
Bar charts.
Scatter graphs.
Tables.
Outline histograms as a data presentation technique.
Frequencies of scores in each category represented by the vertical column.
Data is continuous, rather than discrete (as in a bar chart).
Make sure intervals are not too broad or narrow.
All intervals are represented even if there are no scores in them.
Continuous data on the X axis, and frequency on the Y axis.
There are no spaces between bars.
Outline bar charts as a data presentation technique.
Used when data is in categories (discrete data).
Categories shown along the horizontal axis.
Frequencies indicated on the vertical axis.
Bars do not touch.
Important to make it clear if the vertical axis does not start at 0.
Can also be used to display the mean of different categories.
Outline scatter graphs as a data presentation technique.
Do not depict differences, but associations between co-variables.
It doesn’t matter with co-variable occupies which axis.
Each point on the graph corresponds to the X and Y position of the co-variables.
Outline tables as a data presentation technique.
Summarises main findings of data.
Can be used instead of a chart, but this means it may be harder to visualise.
In a report, they are not the raw scores, but have been converted to descriptive statistics.
In the exam a table might show a comparison of the mean and SD for the different conditions in a study.
