A)
Look at the graph of the different groups stress scores. The gray line shows where two raters agreed exactly.

rater 1 vs rater 2.PNG (the graph is attached)
1. Explain which group was most reliable, including the criteria or criterion you considered.

2. Explain which group was least reliable, including the criteria or criterion you considered.
3. Explain which point shows the worst example of disagreement.

C)
In this graph, the scores have all been recoded so that any score of 6 or higher is a 1 and any score of 5 or less was a 0.

ratersyn.PNG(the graph is attached)
1. Explain which group did best on agreeing whether subjects were stressed or not stressed, including the criteria or criterion that you considered.
2. Explain which group agreed the least, including the criteria or criterion you considered.

B)

1. Explain why the best groups in part B and C were the same or different.

2. Explain why the worst groups in part B and C were the same or different.

3. Explain why you might get more reliability in part C than in part B.

4. Explain why you might get more variation in part B than in part C.