Compara mètodes

	Test d'addicció a Internet (IAT)	Escala d'Ús Problemàtic de Telèfons Intel·ligents (PSUS)
Camp	Psicologia clínica	Psicologia clínica
Família	Process / pipeline	Process / pipeline
Any d'origen	1998	2017
Autor original	Kimberly Young	Zahra Hussain, Mark Griffiths, David Sheffield
Tipus	Self-report questionnaire	Self-report questionnaire
Font seminal	Young, K. S. (1998). Internet addiction: The emergence of a new clinical disorder. Cyberpsychology & Behavior, 1(3), 237–244.	Hussain, Z., Griffiths, M. D., & Sheffield, D. (2017). An investigation into problematic smartphone use: The role of narcissism, anxiety, and personality factors. Journal of Behavioral Addictions, 6(3), 378–386.
Àlies	Internet Addiction Test Young, IAT-20, IAT screening	PSUS, Smartphone Addiction Scale, Mobile Phone Addiction
Relacionats	3	3
Resum	The IAT is a 20-item self-report questionnaire designed to measure problematic internet use and internet addiction. Developed by Kimberly Young in 1998, it was one of the first validated screening tools for internet-related compulsive use. The IAT assesses loss of control, salience (preoccupation with internet), withdrawal symptoms, and negative consequences. It remains widely used in research on internet addiction, particularly in adolescents and young adults.	The PSUS is a self-report questionnaire measuring compulsive smartphone use, withdrawal symptoms, and loss of control related to mobile devices. Developed by Hussain, Griffiths, and Sheffield in 2017, it targets the growing phenomenon of smartphone addiction in the digital age. The PSUS captures how smartphone dependence differs from general internet addiction, with particular focus on the constant connectivity and notification-driven engagement of mobile devices. Related instruments include the Smartphone Addiction Scale (SAS) by Kwon and colleagues, which focuses on adolescents.