All In: Does Impulsivity Predict Problematic Gambling Tendencies? Students complete the NODS-CLiP Gambling Screen and the Barratt Impulsiveness Scale (BIS), then pool data to calculate a Pearson r. The lab addresses a potential floor effect (many students scoring 0 on gambling) as a teachable methodological moment. Discussion connects impulsivity to the psychology of risk-taking and addictive behavior, and challenges students to evaluate whether impulsivity is the only psychological explanatio