Behavioral Economic Intervention to Improve HIV Behaviors in Sexual Minority Individuals

Rapid HIV test

Test for HIV infection. Number of negative results will be reported.

Time frame: Day 30 to Day 180

Delayed Discounting

Delay discounting tasks will consist of 1) a standard adjusting-amount monetary tasks presenting repeated choices between various amounts of money now ($0 to $1,000) and $1,000 after a fixed delay (1 day to 25 years); 2) a cross-commodity task presenting choices between various amounts of methamphetamine now and money later in which the values are made equivalent with the monetary task; and 3) a condom delay discounting task assessing the likelihood that the participant would have sex with their ideal partner immediately with no condom vs. with a condom following a delay. Delayed discounting rate (or k) is an index of the devaluation of a rewards over time, with higher k values representing steeper discounting rates and a greater preferences for immediate rewards.

Time frame: Day 1 to Day 180

Demand

Demand tasks will consist of hypothetical purchasing tasks assessing 1) Methamphetamine demand (grams of methamphetamine purchased as a function of increasing price); 2) condom demand (likelihood of purchasing condoms as a function of increasing price, with the follow-up question of whether they do not have sex or have sex without a condom when the likelihood of condom purchasing goes to zero); and 3) PrEP demand (likelihood of purchasing a one-month supply of PrEP as a function of increasing price). Demand data will be fit to an exponentiated demand model: Q=Q0\*10k(e-αQ0C-1), where Q represents consumption/use of the commodity as a function of increasing cost (C).

Time frame: Day 1 to Day 180

Diagnostic and Statistical Manual of Mental Disorders (DSM)-5-TR Self-rated Level 1

This adult version of the measure consists of 23 questions that assess 13 psychiatric domains, including depression, anger, mania, anxiety, somatic symptoms, suicidal ideation, psychosis, sleep problems, memory, repetitive thoughts and behaviors, dissociation, personality functioning, and substance use. Each item inquires about how much (or how often) the individual has been bothered by the specific symptom during the past 2 weeks. Each item on the measure is rated on a 5-point scale (0=none or not at all; 1=slight or rare, less than a day or two; 2=mild or several days; 3=moderate or more than half the days; and 4=severe or nearly every day). Scoring: Scoring can be done at three levels: Item Level: Review individual item scores. Domain Level: Sum item scores within each domain. Full Survey Level: Sum all item scores.