Types of obsessional-compulsive complaints:
(1) major: checking and washing/cleaning compulsions
(2) minor: slowness and doubting
The instrument consists of 30 statements
checking component: questions 2, 6, 8, 14, 15, 20, 22, 26, 28
cleaning/washing component: questions 1, 4, 5, 9, 13, 17, 19, 21, 24, 26, 27
slowness component: questions 2, 4, 8, 16, 23, 25, 29
doubting component: questions 3, 7, 10, 11, 12, 18, 30
Questions in 2 components:
(1) 2 (checking, slowness), 4 (cleaning, slowness), 8 (checking, slowness), 26 (checking, cleaning)
(2) I am not sure why questions 2 and 8 are given non-obsessional weightings (negative values) for the slowness subcomponent
Scoring:
(1) The simple method offered is to total the number of questions which are answered in the obsessional direction.
Consistency check
(1) same answers expected: 2 and 8, 3 and 7, 10 and 12, 17 and 21
(2) different answers expected: 6 and 22, 16 and 26
(3) if 1 point is assigned for each answer expected (4 same, 2 different), then maximum score is 6 and minimum 0
(4) random answers would give a score of 3
(5) consistency scores of 3 or less indicate suspect results
In addition, a check was added to the spreadsheet looking for all true or all false answers, as this would not be detected by the consistency check.
