In March 2012, Witkowski and fellow Polish Skeptics Club members organized and coordinated a campaign in Poland called "Psychology is Science not Witchcraft."
The campaign was aimed at publicizing the notion that many projective diagnostic tests have poor or no validity.
It also sought to raise concerns among professional psychologists who still use such tests exclusively in clinical diagnosis or in legal proceedings.
Information about the campaign was publicized by major nationwide journals, newspapers, and radio stations, as well as on the largest Polish Internet portals.

Over 140 people from nine large non-governmental organizations took part in a four-day protest.
Scientists, lecturers, and students wore T-shirts featuring Rorschach inkblots and the campaign's slogan at their universities, in their workplaces, and on the streets.
The campaign also organized a number of open lectures and other events.
Finally, they published Rorschach inkblots in the Polish-language version of Wikipedia.
In March 2012, Witkowski and fellow Polish Skeptics Club members organized and coordinated a campaign in Poland called "Psychology is Science not Witchcraft." The campaign was aimed at publicizing the notion that many projective diagnostic tests have poor or no validity. It also sought to raise concerns among professional psychologists who still use such tests exclusively in clinical diagnosis or in legal proceedings. Information about the campaign was publicized by major nationwide journals, newspapers, and radio stations, as well as on the largest Polish Internet portals.
Over 140 people from nine large non-governmental organizations took part in a four-day protest. Scientists, lecturers, and students wore T-shirts featuring Rorschach inkblots and the campaign's slogan at their universities, in their workplaces, and on the streets. The campaign also organized a number of open lectures and other events. Finally, they published Rorschach inkblots in the Polish-language version of Wikipedia.
Tomasz Witkowski