Which of the following is not considered a major social factor in the biopsychosocial model affecting addiction problems?

In the biopsychosocial model, a framework used to understand the multifaceted nature of addiction, various factors are considered to comprehensively address and analyze an individual's experience with addiction. Major social factors typically include elements that directly influence an individual's social environment and relate to their interactions with society.

When evaluating intelligence in relation to addiction, it is primarily framed as an individual characteristic and cognitive factor rather than a social one. Intelligence typically pertains to a person's cognitive abilities, reasoning, learning, and problem-solving skills, which can influence behavior but are not inherently social. This differentiation is crucial because social factors primarily revolve around interactions, relationships, and societal structures, such as family dynamics, socioeconomic status, and social support networks, which directly affect an individual’s risk for and recovery from addiction.

Thus, while intelligence can play a role in a person's life outcomes and coping mechanisms, it does not fit the definition of a major social factor affecting addiction problems in the same way that the other options do, which encompass societal influences and relational contexts.