1. A computer-implemented method for evaluating psychological status or disorders, comprising: obtaining personal characteristics of client from questionnaires; receiving colored patterns from the client; rating color-related elements of pattern colorings; rating performance-related elements such as the completeness and the accuracy of the pattern colorings; determining a degree of concentration of the pattern coloring; estimating a level of psychological symptoms and disorders; estimating a probability that the psychological status or disorder is serious; detecting changes of elements in the pattern colorings; interpreting the pattern colorings by invoking knowledge from a knowledge base relevant to the rated elements and obtained personal characteristics; and detecting the changes in evaluations or interpretations of psychological status or disorders.