Skip to main content

Does One Day of Drinking Matter? 21st Birthday Drinking Predicts Subsequent Drinking and Consequences

About the Course:

This course examines the effects of high peak (binge) drinking on the 21st birthday. The study included a large sample of 599 college students. Surprisingly those who drank less at baseline show an increase in peak drinking at follow-up. Peak drinking on the 21st birthday showed increased consequences regardless of drinking at baseline and the effect was sustained throughout follow-up at 3, 6, 9 months and a year after the 21st birthday.

This course is based on the article, Does One Day of Drinking Matter? 21st Birthday Drinking Predicts Subsequent Drinking and Consequences created by Irene M. Geisner, PhD., et al. in 2017.

Publication Date:


Course Material Authors

Irene M. Geisner, PhD.

Dr. Geisner has held a position at the University of Washington’s Department of Psychiatry and Behavioral Sciences where she conducted research in college student mood disorders, substance use and abuse, and other health and risk behaviors.

Melissa A. Lewis, PhD.

Dr. Lewis’s is a Professor at the University of North Texas. Her research focuses on advancing the understanding of the dual processing nature of decisions to engage in health-risk behaviors and inform theoretically sound and efficacious alcohol use and related risky sexual behavior interventions among adolescents and young adults.

Isaac C. Rhew, PhD. (Epidemiology)

Isaac Rhew is a Research Associate Professor, Department of Psychiatry and Behavioral Sciences at the University of Washington. Dr. Rhew is a psychiatric epidemiologist broadly interested in the etiology and prevention of substance misuse and other common mental health problems particularly with regards to the role of ecological-level social and physical contextual factors.

Course Creator

L.A. Rankin

L.A. Rankin is a social worker with experience in many different settings with a variety of clients. She has worked with dementia and Alzheimers patients, dual diagnosis MH/MR, in a battered women’s shelter, and a rape crisis center. She also has 11 years of experience as a child protective social worker, where she earned certificates in domestic abuse/family violence and substance abuse.

Recommended For:

Counselors, marriage and family therapists, psychologists and social workers. This course is appropriate for all levels of knowledge.

Course Objectives:

  1. Acknowledge the problem of peak drinking on the 21st birthday which results in alcohol consequences including alcohol poisoning.

  2. Identify the factors in suffering alcohol consequences.

  3. Extrapolate the effective interventions to reduce both peak drinking and alcohol consequences.

Course Material

References begin on page 9.

Course Material

Exam Questions

All exam questions for the course are visible on this page for members of Addiction Counselor CE.

Membership is free, and you can sign up today! You'll only pay when you're ready to purchase a course.

If you're already a member, please log in to see the exam questions for this and all other courses.


  • Is this course approved for my continuing education requirements?

    Yes, most likely. Look Up Your State Board for more detailed information. Logged-in site members will see the relevant approval information displayed in the Approvals tab for every course.

  • Do you have special accommodations for my disability (ADA)?

    Please contact us! We would be happy to accommodate your needs right away, and your input will help us make Addiction Counselor CE more accessible for future users too.

  • How do I enroll in this course?

    Use the Enroll In This Course button and just follow the instructions! You don't pay anything until you're ready to take an exam.

  • What do I have to do to complete the course?

    To complete the course, review the course objectives, then review the material, and then pass the exam with a score of 75% or greater and lastly complete an evaluation.

  • How do I access the materials?

    Most of our courses are based on online articles available for free to the public. Some courses, such as those based on books, require that you purchase the material. Use the Course Materials tab above for more info. You don't need to enroll in the course to access materials, whether free or paid. So you always know what you're getting into before you commit to taking the course.

  • How do I get my certificate?

    Your certificate will be available to download or email immediately when you pass the course exam and complete the evaluation.

  • Can I contact you for more help?

    Yes! Use the Help widget at the bottom-right of the screen anywhere on Addiction Counselor CE to search our help docs, or to ask our support team for help.

Categorized in:

Course Number 102516
1 credit hour
Log in for credit hours relevant to your licensure.

  • Reading-Based Online
Exam Fee: $5.97 No exam fee with a membership package!

No Cost Materials

4.32 out of 5
85 members have taken this course

Try a free CE course.

Get started by trying a free course of your choice. No payment info required!

Sign Up Free
Abstract image of people, a PC and books