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Continue to ChatInvestigation of measurement invariance of PISA 2015 collaborative problem solving skills: turkey, Norway and Singapore - https://avesis.hacettepe.edu.tr/publication/details/305296b7-5731-431b-8ef2-1316c3d97d17/investigation-of-measurement-invariance-of-pisa-2015-collaborative-problem-solving-skills-turkey-norway-and-singapore