Research Methods - Errors Flashcards
1
Q
Type 1 errors
A
Optimistic - a false positive hypothesis (incorrect rejection of null hypothesis)
2
Q
Type 2 errors
A
Pessimistic - a false negative hypothesis (incorrect rejection of alternative hypothesis)
3
Q
Statistical testing
A
Determining whether hypotheses should be accepted or rejected
4
Q
What does sign test analyse?
A
Differences in scores between related items
5
Q
When is sign test used?
A
- Need for categorical/nominal data
- Repeated measure design
- Looking for a difference
6
Q
Level of probability
A
0.05 or 5%
7
Q
Strengths of sign test
A
Easy to use
Allows for inclusion of more data
Applicable
8
Q
Limitations of sign test
A
Ignores aspects of data trend
Reduces statistical power
