Symptom number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | | Episode |
|---|
row 1 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | (mod 2) | 1 |
row 2 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | (mod 2) | 0 |
row 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | (mod 2) | 0 |
row 4 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | (mod 2) | 1 |
row 5 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | (mod 2) | 0 |
row 6 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | (mod 2) | 1 |
row 7 (= row 4) | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | (mod 2) | 1 |
row 8 (= row 2) | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | (mod 2) | 1 |
row 9 (= row 5) | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | (mod 2) | 1 |
row 10 (= row 4) | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | (mod 2) | 1 |
Total sum | 5 | 9 | 4 | 6 | 7 | 2 | 3 | 4 | 9 | | 5 |
Average | 0.5 | 0.9 | 0.4 | 0.6 | 0.7 | 0.2 | 0.3 | 0.4 | 0.9 | | 0.5 |
- Examples for symptoms 1–9 in Criterion A having values of 0 or 1 are shown. Each row is an assessment during a session. Rows 3 and 5 are equivalent to row 1; i.e., row = row 3 = row 5. Additionally, row 4 = row 6 = row 7 = row 9 = row 10, and row 2 = row 8. The expression of these examples can be simplified as in Table 2. In this case, the order of ‘which items should be effective on the scale’, is Aall(1–9) = [11|12|13|14|15|16|17|18|19||0
10
|0
11
|0
12
|…] (mod 2); all symptoms 1–9 in Criterion A should be effective, and this could be reinterpreted as the result of the operation (selection for effectiveness) Aall(1–9) (= A(0→all(1–9))) acting on the identity order A0 = [01|02|03|04|05|06|07|08|09||0
10
|0
11
|0
12
|…] (mod 2); i.e., A0 * A(0→all(1–9)) = Aall(1–9). A0 could be also regarded as an undiagnosed state. The rows whose components are equivalent to each other are compressed in the earliest rows of Table 2 and are highlighted silver in Table 1. Additionally, the diagnosis is given in the extreme right column; rows 1, 4, 6, 7 and 10 meet Criterion A of a ‘major depressive episode’ and have a diagnosis value of 1 (whereas rows not meeting Criterion A have a value of 0)
