1.10 Research Methods - Pilot Studies And Correlations

Question 1

Pilot studies

Answer 1

Small scale versions of investigations that take place prior to the real one

Question 2

Why are pilot studies used

Answer 2

To check procedures and methods to ensure they are fit for purpose and work so that any adjustments can be made in preparation for the real experiment to increase the internal validity and reduce the chance of inaccuracies in the actual study

Question 3

Correlation

Answer 3

Statistical technique used to analyse data when there are two sets of numerical scores from a participant, the main aim is to assess the relationship between 2 co-variables and is usually shown on a scatter graph

Question 4

Co-Variables

Answer 4

Variables used when looking at correlations

Question 5

How do correlation hypotheses differ

Answer 5

Written in the same way but term relationship is used rather than difference

Question 6

Positive correlation

Answer 6

When both the variables move in the same direction

Question 7

Negative correlation

Answer 7

When one variable increases, the other decreases

Question 8

Zero/No Correlation

Answer 8

When the researcher finds no relationship between the two variable what so ever

Question 9

Correlation co-efficient

Answer 9

Value between -1 AND +1 which indicates the strength and direction of the correlation

Question 10

Strengths of Correlation Studies:

Answer 10

• Useful for investigating relationship between two variables, better cause and effect
• Provides Quantitative data which is comparable allowing for analysis and a drawing of conclusions
• Useful as a starting point for future research
• Allows us to investigate area that are usually impractical or unethical

Question 11

Limitations of correlation studies:

Answer 11

• Only shows us where there is a relationship between the variables, no reason why.
• Lack of qualitative data
• Can’t control EVs so cant establish cause and effect