Graphs

Question 1

bar chart

Answer 1

• compares groups and conditions
• not continuous data, separated bars
• typically more than 1 condition
• marks from labels and fully operationalised title

Question 2

scattergrams

Answer 2

• used to show relationships
• demonstrates strength and deviation of correlations
• can estimate the correlation co-efficient based on a graph
• each data point is a paired score

Question 3

histogram

Answer 3

• shows distribution of data on a continuous scale
• usually data in the same condition
• higher bar=greater frequency
• area of each bar is proportionate to the frequency
• y axis must start at 0

Question 4

line graph

Answer 4

• alternative to a histogram
• shows continuous data (through a line connecting each point)