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Roebianto, Adiyo and Savitri, Setiawati Intan and Aulia, Irfan and Suciyana, Arie and Mubarokah, Lailatul (2023) Content validity: Definition and procedure of content validation in psychological research. Testing, Psychometrics, Methodology in Applied Psychology (TPM), 30 (1). pp. 5-18. ISSN 1972-6325