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You are here: Home Modules Module 2: Identify Intervention Options Getting the ¨dose¨ right - Quantity
Getting the ¨dose¨ right - Quantity Print E-mail
Module 2: Identify Intervention Options

Just 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 quantity dose

Ontario Public Health PractionersThere are several factors to consider as you work on the quantity of your intervention. Review the best available evidence – which could be research work or the experience of other organizations and jurisdictions that have tried the intervention – to adjust quantity.

Plan for sufficient duration

What’s the optimum time it will take for the intervention to achieve its intended outcome? How long did other jurisdictions run an intervention before they saw results – was it weeks? Months?

Plan for the right approach

Different audiences respond to different approaches. Define the groups you’re aiming at and choose the bestiStock_000005290281XSmall way to engage each of them. Some may want technical information, while others respond to face-to-face interaction.

Plan for sufficient reach

Who makes up your audience is important. You also need to determine how many participants (whether they’re individuals or organizations) will be involved or, more broadly, what proportion of the population the intervention needs to reach.

Plan for sustainability

Part of planning to deliver the right messages to the right audience at the right time is how you’ll ensure your intervention program will last as long as it needs to. To learn more about sustainability, refer to: www.sdo.lshtm.ac.uk/cpchangemanagement.html to access the Greenhalgh, Robert, & Bate, (2004) article, from The Service Delivery and Organizational Research and Development Program.

Sustaining an intervention takes a combination of effective design and adequate investment in resources of all kinds. Ask yourself what types of resources you need, both to launch the implementation and keep it going. Will you need direct funding? Do you have the budget, or will you have to find it? Are there in-kind contributions you could seek? Assess what human resources the program demands, including their expertise and skills. Are there roles for volunteers? What aspects will require paid staff? How long and at what intensity will these resources need to be in place?

Sustainability is an important issue to consider during monitoring and evaluation, when you’re trying to assess if a program is working and why.

Last Updated on Sunday, 31 May 2009 17:54