Development of the unified analysis method of drawn pictures and verbal protocols and the clinical social psychological study based on the proposed method

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In psychology and psychiatry, projective drawings and verbal protocols are used to assess an individual's personality and obtain a holistic understanding of behavior. We proposed a statistical image and singular value decomposition analysis method to address the lack of objectivity in interpreting drawings as well as verbal protocol data. We used a new proposed method to analyze projective tree-test drawings and verbal protocols to interpret psychological processes of university students and patients. We analyzed verbal protocols and pictures drawn by university students and patients with mental disorders, then correlated statistical properties of the analyses with scores from psychological tests, such as State-Trait Anxiety Inventory, Self-rating Depression Scale, Beck Depression Inventory, and Yatabe-Guilford Personality Test. The results suggest significant relationships among some statistical properties of the images and verbal protocols and depression.