Pathways Project: Development of the Gambling Pathways Questionnaire (GPQ)
The Gambling Pathways Questionnaire (GPQ; Nower & Blaszczynski, 2017) is a 48-item, validated instrument based generally on the Pathways Model (Blaszczynski & Nower, 2002). The instrument provides clinicians with a snap-shot of a client's rating (high, medium, lower) on nine etiological risk factors that lead to problem gambling. It also assigns clients to one of three sub-groups with specific implications for gambling treatment.
A full text of the validation of the GPQ, conducted treatment seeking gamblers in three countries, is available through the American Psychological Association here.