1.13 Research Methods - Statistical Methods

Question 1

Statistical Testing

Answer 1

Uses means that are very close in score and tries to determine whether a result is caused by chance or by the variable being changed itself

Question 2

Sign Test

Answer 2

Stats test used to analyse the difference in scores between related items

Question 3

When to use sign tests:

Answer 3

• When investigating a test of difference
• When a piece of research uses repeated measures
• When data is nominal

Question 4

Sign Test Process

Answer 4

• Add all plus, minus and equals signs in relation to the hypothesis
• Take away any results that are equal and adjust the number of participants
• Take the least frequent value, label it S
• Count the number of participants and label it N
• Level of significance is labelled D
• Compare the S score with critical value score at the significance value of P≤0.05
• Conclusion made on whether significant or not