On the methodological peculiarities of scientific research and assessment conducted by clinical psychologists

The article focuses on the methodological peculiarities of research practice (scientific research and assessment) in clinical psychology. The author indicates typical departures of this practice from the methodological standards of modern psychology – particularly from those that constitute the patterns of evidence-based assessment and evidence-based practice in psychology: ignoring the primary role of psychological theories, too frequent departures from psychometric standards in the procedures of constructing and using psychological tests (which are sometimes pseudotests, such as Koch’s Tree Test). The importance of construct validity is stressed in the article.