# Unit 1; Research Methods; Correlation

• Created by: LibPinch
• Created on: 06-01-17 13:30
• Correlation
• Types of correlation
• Positive: as 1 co-variable increases, so does the other
• Negative: as 1 co-variable increases, the other decreases
• None: no definite trend, no apparent relationship
• Correlational Hypotheses
• Two-tailed
• there will be a correlation but it does not say if positive or negative
• One-tailed
• there will be a correlation and direction is given
• No IV or DV, only co-variables
• Descriptive stats
• use scatter graph to show results
• can't justify "x affects y", doesn't explain relationship
• Findings: point to particular values e.g. highest score or range
• Conclusions: inferences you can make from data
• Inferential stats
• Spearman's Rho test calculates 'correlation co-efficient' between -1 & +1
• Positive correlation
• will be a +
• closer to +1, the stronger the correlation
• Negative correlation
• will be a -
• closer to -1, the stronger the correlation
• No correlation
• will be near 0
• can use old data for research
• useful for if variables can't be manipulated
• good starting point, may find random relationship