1
Mann Whitney criteria?
IGD, difference, ordinal
Conventional level of significance
0.05
What does p> 0.05 mean?
Likelihood or results being due to chance is less than 5%
What is the more stringent level of significance to use?
0.01
Nominal data is ....
Categorical
Chi square criteria?
Nominal, IGD, Difference
What are the three parametric tests?
Related T, Unrelated T, Pearson's
Test of difference, ordinal data, repeated measures - which test?
Wilcoxon
The two tests for correlation?
Spearman's and Pearson's
If you collect data by rating mood what type of data have you collected?
Ordinal
Type of data where the intervals are not fixed/of equal size?
Ordinal
What are the three levels of measurement?
Interval, ordinal, nominal
If you were testing for a relationship with interval data - which test?
Pearson's
Which test uses nominal data, a test of difference and repeated measures.
Sign test
What is meant by a Type 1 error?
Null is rejected when it should have been retained/false positive
What is known as a false positive - null is accepted when it should have been rejected?
Type II error
How do you reduce the likelihood of a Type II error?
Use 0.05/5% significance level
Larger sample
Mean, median and mode are known as ....
Measures of central tendency/descriptive statistics.
Whether the test appears to measure what it claims to, and hence is objective.
Face validity
An observation of driver behaviour to test or establish that more males than females stop at zebra crossings if there are pedestrians waiting to cross - which test?
Chi square
An analysis of differences between males and females in the amount of time spent watching television, predicting that males spend more time watching television than females
Unrelated T
An analysis of the relationship between happiness and self-esteem predicting that the higher a person’s rated estimate of self-esteem, the higher his/her happiness rating
Spearman’s rank order
Research conducted in an eating disorder clinic aiming to show that bulimics will demonstrate food preferences for saltier snacks, while anorexics will demonstrate preferences for sweeter snacks
Chi squared
A piece of research being conducted in a hospital out-patient department expecting to find that blood pressure goes up as waiting time increases
Pearson's
A survey of gender and self-esteem predicting that males have higher self-esteem estimates than females
Mann Whitney