"S-II" Symptom Check-list which allows for a fast diagnosis of neurotic disorders. A result of 165 points suggests the incidence of such disorders with the probability of 90%. The methodology of the construction of the check-list intends for the application of questions most common in those ill due to neurotic disorders (owing to the change in frequency) and the most possibly equal amount of questions on the symptoms common to women and men. Thanks to this the norm for women and men is identical. SCL S-II Symptom Check-list is a shortened and actualised version of the "O" Symptom Check-list, developed in 1975. It is similar to the SCL-90 and highly correlated with it, but it does not contain the variables concerning the psychotic symptoms. Thanks to this, its' accuracy (specificity) in the diagnosis of neurotic disorders is high. 4 pairs of questions allow for the judgement of answer reliability. 10 scales were singled out in the questionnaire. They are only of a helpful value and do not allow for a one-sided diagnosis of the type of the disorder, listed in the ICD-10. The scale results can, however make the correct diagnosis easier.