Kawecki, Alina.2009-03-232009-03-2319801980Source: Dissertation Abstracts International, Volume: 62-13, Section: A.9780315006935http://hdl.handle.net/10393/8298http://dx.doi.org/10.20381/ruor-7230Education, General.An investigation of performance under contingent and one-step path conditions.Thesis