What is an audience response system? 

What are the parts of an audience response system?

Every system has three parts:

1. Software on the presenter's computer. It holds the questions, counts the answers and draws the chart. Many systems work as an add-in, so a question is just another slide in PowerPoint.
2. A way for each person to answer. Either a handheld clicker (also called a keypad, a handset or a voting pad) or a phone, tablet or laptop that opens a web page or an app.
3. A link between the two. Clickers send their answers by radio, or on older models by infrared, to a small receiver plugged into the presenter's computer. Phones send their answers over Wi-Fi or mobile data to an online service.

The EDUCAUSE Learning Initiative described the clicker version in 2005: clickers "use infrared or radio frequency technology to transmit and record student responses," a receiving station at the front collects them, and each clicker can be registered to a student "or not, depending on the teacher's prerogative." It also noted that clickers had been "making inroads in college and university courses since about 1998" (EDUCAUSE, 7 Things You Should Know About Clickers).

The names vary by country and setting. US campuses tend to say clickers, classroom response system or student response system. UK universities often say electronic voting system (EVS) or voting handsets. At an AGM or annual meeting, people usually say voting keypads.

What happens during a live poll, step by step?

Take a lecture of 120 students on cell biology.

1. The lecturer reaches a question slide: "Which process turns sunlight into chemical energy?" with four options.
2. She opens the poll. Students press A, B, C or D. A counter shows how many have answered.
3. After 60 to 90 seconds, or once the counter stops rising, she closes the poll and shows the chart.
4. She reads the result and decides what to do next.

Step 4 is where the poll earns its time:

• Most of the room is right: confirm the answer in one sentence and move on.
• The room is split between two answers: do not reveal the answer yet. Ask students to convince a neighbor, then ask the same question again and show both charts.
• Most of the room is wrong: explain the concept again, with a different example.

The EDUCAUSE brief opens with exactly this scene: a chemistry lecture of over 400 students, a 90-second question, responses "fairly evenly split across all 5 options," a few minutes of pair discussion, and a second vote (EDUCAUSE).

What types of audience response systems are there?

Plickers is the best-known example of the card type: "students answer questions by holding up unique cards, so there's no need for student devices or accounts," and the teacher scans the room with an app (Plickers help center).

Our article on clickers or phones compares the first two types in detail, and the student response systems guide covers the main products by type.

Does an audience response system improve learning?

The tool helps when it changes what happens in the room. On its own, the evidence for the device is weak.

• Active learning works. A meta-analysis of 225 studies in undergraduate science, engineering and math found that exam scores "improved by about 6% in active learning sections," and that students in traditional lectures "were 1.5 times more likely to fail" (failure rates of 33.8% versus 21.8%) (Freeman et al., PNAS, 2014). Polling questions are one common way to make a lecture active.
• Clickers alone add little. The largest meta-analysis of clicker studies (Hunsu, Adesope and Bayly, 2016) examined 111 effect sizes from 53 studies with more than 26,000 participants. A 2025 systematic review quotes its conclusion that "only a tiny effect of the clicker was observed on cognitive learning outcomes," and notes that only 20% of the studies used a pre-test and only 10% randomized their sample (Humanities and Social Sciences Communications, 2025).
• The benefits and the drawbacks are practical. A review of the literature lists benefits for attendance, attention, participation, discussion and feedback, and challenges such as the "time needed to learn and set up the ARS technology, creating effective ARS questions" and covering the syllabus (Kay and LeSage, 2009).

In practice, a question built around a common misconception, followed by discussion and a second vote, does more than a recall question with no follow-up. Our summary of clickers in the classroom research goes through the studies one by one.

Where are audience response systems used?

• Universities and colleges: concept checks before moving on, peer instruction, anonymous questions on sensitive topics, named quizzes that record each student's answers. See higher education.
• Schools: whole-class checks for understanding. Phone rules matter here. In England, Department for Education guidance expects that "pupils do not have access to their mobile phone throughout the school day including during lessons," and it became statutory on 29 June 2026 (DfE). In the US, Education Week counts "at least 40 states and the District of Columbia" that require districts to ban or restrict phones (Education Week). In fall 2023, 72% of US high school teachers called phone distraction a major problem in their classroom (Pew Research Center). Phone-based polling does not fit those rooms. The phone ban guide covers the options.
• Training: a knowledge check at the start and the same questions at the end show what the session changed.
• Conferences and town halls: opening polls, audience questions, quizzes between sessions.
• Meetings and votes: AGMs, boards, unions and member associations use keypads for anonymous votes counted in seconds. See how to run a fair vote and meetings and voting.

What should you check before choosing a system?

Ask every vendor the same questions:

1. Network. Does it need Wi-Fi or mobile data on the day? If it does, ask IT how many devices the room's access points were planned for, and run a test poll with a full room before a session that matters.
2. Capacity and range. How many people in one session, and how far from the receiver?
3. Your presentation software. Which PowerPoint versions does it support? Mac or Windows? Keynote or Google Slides?
4. Setup. Do devices need pairing, channels or log-ins? How long before the first question works?
5. Anonymous and named modes. Can you choose per question? In anonymous mode, is any device ID stored?
6. Question types. Multiple choice only, or also numbers, ranking and free text?
7. Reports. Can you export results per question and per participant?
8. Handling. Who hands out, collects and stores the devices? How often do batteries need changing?

How does OMBEA's audience response system work?

OMBEA Response adds one tab to PowerPoint. Click New question and you get a normal slide with your question, the answer options and a native PowerPoint chart that fills as people answer. ResponsePad clickers talk to a USB receiver by radio, with no Wi-Fi, no app and no pairing, within 100 meters, for up to 2,000 people in one session. Batteries last about three years in normal use. For open questions and word clouds, people can answer in the browser on their own phone with ResponseApp. OMBEA Response 360 runs on Windows and Mac next to Keynote, a web page or a video. The features page shows each question type, and the guide to your first polling question walks through the setup.

For your next session, write one question whose wrong answers match the mistakes your audience usually makes, and decide in advance what you will do for each result. The good question design guide has examples.