Final answer:
Low educational attainment and substance use are factors linked to increased sexual risk in adolescence, while stable family relationships and religious involvement tend to reduce such risks.
Step-by-step explanation:
The factors increasingly implicated in sexual risk in adolescence are low educational attainment and substance use. Stable family relationships and religious involvement, on the contrary, are generally associated with a reduction in such risks. Research indicates that adolescents with lower levels of education may lack the knowledge required to make informed decisions about their sexual health. Furthermore, substance use is heavily linked to increased sexual risk behavior, as it can impair judgment and lead to risky sexual practices.