Table 1.
Four months test-retest reliability | Internal consistency | |||
Kappa | Kappa with different interviewers | Item-total correlation | Alpha if deleted | |
N | 31 | 23 | 58 | |
Difficulty making and keeping friends | 0.53 | 0.47 | 0.41 | 0.57 |
Usually a loner | 0.58 | 0.51 | 0.31 | 0.60 |
Trusts people | 0.58 | 0.53 | 0.47 | 0.55 |
Normally loses temper easily | 0.32 | 0.32 | 0.27 | 0.61 |
Normally impulsive | 0.50 | 0.58 | 0.20 | 0.63 |
Normally a worrier | 0.26 | 0.25 | 0.30 | 0.60 |
Normally dependent | 0.32 | 0.27 | 0.35 | 0.59 |
Perfectionist | 0.50 | 0.57 | 0.29 | 0.61 |