ABSTRACT
The majority of recent studies of the Rorschach have been group comparisons or correlational investigations, with only slightly more than 10% of the projects conducted since 1985 introducing some form of experimental intervention. This suggests that most investigators have been much more concerned with clinical relevance than scientific rigor in their explorations of the Rorschach. Most of these projects have been conducted within a broad spectrum of mental health settings in the search for meaningful diagnostic patterns, but there have been relatively few attempts to experimentally monitor important variables that might affect the internal validity of the investigation. Consequently, a variety of potentially confounding factors relating to subject selection, group composition, missing or inappropriate control groups, variations in administration and/or scoring, and situational influences have often made results difficult to understand.
