PRACTICAL SPEAKING GUIDE

Explain a number without claiming more than it shows

A trial email received a higher response rate than the previous email.

2026-09-27 · Original teaching notes by SpeakBEC

Start with the situation

A trial email received a higher response rate than the previous email. The trial used a smaller, more engaged audience. You want colleagues to notice the promising signal without concluding that the new wording alone caused the increase.

A possible exchange

The response rate rose from 8% to 12% in the trial.

That is a four-percentage-point increase, but the audience was smaller and more engaged.

The result is promising; it doesn’t isolate the effect of the wording.

I suggest testing both versions with comparable groups next.

Why this works

Give the comparison, then the limitation and the implication. An increase from 8% to 12% is four percentage points; it is also a 50% relative increase. These descriptions answer different questions, so specify which you mean. Choose the form your audience can interpret and avoid using a larger-sounding number to create an impression.

A limitation does not make the result useless. It tells listeners which decision the evidence can support. “Promising” fits an early signal better than “proven” when the design cannot isolate a cause. End with a next step that addresses the uncertainty you named. Do not recommend collecting “more data” without saying what comparison is missing.

Change the condition and try it

Customer satisfaction rose after a process change, but only half as many people answered the second survey. Explain the result in three sentences: observed change, missing certainty and a practical follow-up. Do not say the process change caused the improvement.

Try a spoken or written response before checking it. Did you address the changed condition? Could the listener identify the next step? The model is not the only acceptable answer.