Protractor on the dial from 180°, as the dial is graduated from opposite zero marks to 90° each way. Since the spaces, both on the main scale and the Vernier scale, are numbered both to the right and to the left from zero, any angle can be measured. The readings can be taken either to the right or to the left, according to the direction in which the zero on the main scale is moved. Reading the Vernier scale: The bevel protractor Vernier scale may have graduations of 5′ (minutes) or 1/12°. Each space on the Vernier scale is 5′ less
Basic symptoms of schizophrenia symptoms and brief transient psychosis, to detect at-risk mental states in help-seeking people. COPER criteria are met when at least 1 of the symptoms on the scale (see table below) is present with at least weekly occurrence in the last 3 months, and the first occurrence of symptoms was more than 12 months prior to evaluation. Below are the basic symptoms associated with psychosis, along with whether they appear on COGDIS, COPER, or both: The Examination of Anomalous Self-Experience (EASE) is another scale used to evaluate subjective symptoms of schizophrenia. This is a semi-structured interview scheme that was designed to