Class Size Impacts Women in STEM

A new study found smaller class sizes can increase the participation of women in STEM fields.

female student sitting alone in large lecture hall

When it comes to instruction in the classroom, the number of students taking a course can have an impact on how whether female students decide to pursue STEM careers, according to a new study.  

Using data obtained from multiple institutions for 44 science courses, the researchers calculated female participation based on more than 5,300 interactions between instructors and students over a two-year period. The study found that large classes with more than 120 students can begin to negatively impact student performance.

"We show that class size has the largest impact on female participation, with smaller classes leading to more equitable participation. We also found that women are most likely to participate after small-group discussions when instructors use diverse teaching strategies," said lead author Cissy Ballen, who is currently an assistant professor at Auburn University. "We hope these results encourage instructors to be proactive in their classrooms with respect to these inequities."

The researchers also found that there are ways to make large class sizes function like smaller ones, by breaking up students into groups for evidence-based active learning exercises. This technique is being used as part of the Active Learning Initiative at Cornell University's College of Arts and Sciences.

The study received funding from the National Science Foundation. A full copy of the report can be found in the BioScience journal for a small fee.

About the Author

Sara Friedman is a reporter/producer for Campus Technology, THE Journal and STEAM Universe covering education policy and a wide range of other public-sector IT topics.

Friedman is a graduate of Ithaca College, where she studied journalism, politics and international communications.

Friedman can be contacted at [email protected] or follow her on Twitter @SaraEFriedman.

Click here for previous articles by Friedman.


Featured

  • SXSW EDU

    Explore the Future of AI in Higher Ed at SXSW EDU 2025

    This March 3-6 in Austin, TX, the SXSW EDU Conference & Festival celebrates its 15th year of exploring education's most critical issues and providing a forum for creativity, innovation, and expression.

  • white clouds in the sky overlaid with glowing network nodes, circuits, and AI symbols

    AWS, Microsoft, Google, Others Make DeepSeek-R1 AI Model Available on Their Platforms

    Leading cloud service providers are now making the open source DeepSeek-R1 reasoning model available on their platforms, including Amazon, Microsoft, and Google.

  • glowing futuristic laptop with a holographic screen displaying digital text

    New Turnitin Product Brings AI-Powered Tools to Students with Instructor Guardrails

    Academic integrity solution provider Turnitin has introduced Turnitin Clarity, a paid add-on for Turnitin Feedback Studio that provides a composition workspace for students with educator-guided AI assistance, AI-generated writing feedback, visibility into integrity insights, and more.

  • From Fire TV to Signage Stick: University of Utah's Digital Signage Evolution

    Jake Sorensen, who oversees sponsorship and advertising and Student Media in Auxiliary Business Development at the University of Utah, has navigated the digital signage landscape for nearly 15 years. He was managing hundreds of devices on campus that were incompatible with digital signage requirements and needed a solution that was reliable and lowered labor costs. The Amazon Signage Stick, specifically engineered for digital signage applications, gave him the stability and design functionality the University of Utah needed, along with the assurance of long-term support.