“…Nevertheless, the belief that nothing works was so deeply entrenched in the criminal justice system (McGuire & Priestley, 1995) that the discussion of whether rehabilitation of offenders would be possible remained for over a decade (Lösel, 1995). Intending to clarify this issue, several authors (Andrews et al, 1990; Running head: COGNITIVE APPROACH IN THE REHABILITATION OF OFFENDERS 4 Garret, 1985;Lipsey, 1995;Lipsey & Wilson, 1998;Lösel, 1995;Redondo, Garrido, & Sanchéz-Meca, 1997;Redondo, Sanchéz-Meca, & Garrido, 1999) carried out meta-analytic studies to revise the research results in this field.…”