Now try this activity.

What might be problematic with these descriptions of methods, or with the methods themselves?

Type your thoughts into the boxes then press 'Click for feedback' to view possible answers.

1. We measured how often nurses ask patients whether they smoke

2. We compared a new wound care product with usual care

3. We asked 100 teenagers to participate in our survey of healthy eating

4. To assess the value of an educational leaflet, we gave the intervention group a leaflet and a telephone help line number