Skip to content

Increase font size Decrease font size Default font size default color orange color green color
You are here: Home Modules Module 2: Identify Intervention Options Getting the ¨dose¨ right – Quality
Getting the ¨dose¨ right – Quality Print E-mail
Module 2: Identify Intervention Options

Ontario Public Health PractionersJust as you have to choose the best interventions for each socio-ecological level you’re aiming at, you have to consider the “dose” you’ll give. The “dose” of an intervention includes both quantity (Will it last long enough to be effective? Will it have enough impact and reach enough people?) and the quality (Does it meet your standards and follow your plan?) Whether an intervention can be given in a sufficient dose is a factor to consider when you’re weighing which interventions to use.

Deciding the quality dose

Success will have a great deal to do with the quality of the interventions you try. Go back to the best available evidence – research, theory, and what other organizations and jurisdictions have found – to establish what makes a high-quality intervention. Look for these factors:

  • Are there standards for effectiveness?
  • Is there fidelity – that is, is the intervention being implemented as planned?
  • Did you identify and use the most potent ingredients?
  • Does the intervention align with – or “fit” – the context? Context is discussed in more detail in Module 3

iStock_000006094426XSmallThrough your research, you identified interventions the evidence suggested would work. Make sure you meet the standards that made those interventions effective.


After all the planning and design that have gone into your multiple intervention program, make sure you follow through on all of it – don’t cut corners. Include all the essential components for change your research tells you are needed to make your intervention a success and execute them properly.

The most potent ingredients for change

Your work researching theory will tell you which are the most effective ways to bring about changes in populations. They could include modelling, feedback or social comparison. Have those that seem likely to be most effective in place.

Plan parameters for intervention adaptation

As you review potential interventions, decide which can be altered or adjusted for changing contexts to ensure a good fit, while maintaining the intervention’s integrity. For more information please refer to Example 14 - School Programs to Promote Healthy Eating and Physical Activity among Youth.

Last Updated on Sunday, 31 May 2009 17:56