The counterfactual inference test (Hooker et al, 20003)
| Note: Correct or normative responses to these questions are in bold and are 1) a, 2) b, 3) b, 4) a. |
| Numbers in parentheses: % of Parkinson’s disease patients who selected this item; % age matched controls; % undergraduates in Hooker et al pilot validating study who selected this item. |
| 1) Janet is attacked by a mugger only 10 feet from her house. Susan is attacked by a mugger a mile from her house. Who is more upset by the mugging? |
| a) Janet (20.0; 40.0; 86.0) |
| b) Susan (6.7; 0.0; 0.0) |
| c) Same/can’t tell (73.3; 60.0; 14.0) |
| 2) Ann gets sick after eating at a restaurant she often visits. Sarah gets sick after eating at a restaurant she has never visited before. Who regrets their choice of restaurant more? |
| a) Ann (46.7; 10.0; 7.0) |
| b) Sarah (40.0; 50.0; 88.0) |
| c) Same/can’t tell (13.3; 40.0; 5.0) |
| 3) Jack misses his train by 5 minutes. Ed misses his train more than an hour. Who spends more time thinking about the missed train? |
| a) Ed (40.0; 10.0; 7.0) |
| b) Jack (40.0; 70.0; 91.0) |
| c) Same/can’t tell (20.0; 20.0; 2.0) |
| 4) John gets into a car accident while driving on his usual way home. Bob gets into a car accident while trying a new way home. Who thinks more about how his accident could have been avoided? |
| a) Bob (53.3; 40.0; 88.0) |
| b) John (26.7; 20.0; 5.0) |
| c) Same/can’t tell (20.0; 40.0; 7.0) |