It is necessary to understand both the design of a trial, and some of the ideas behind the design, before attempting to analyse the data. This session provides a brief review of these design ideas. The key element in the design of a trial is the ‘Statement of Trial Objectives’. We will use this session to show that the objectives of the trial determine the treatments to be applied in the experiment, as well as the measurements that are to be taken. Satisfying these objectives will also require an appropriate layout of the plots (or other units) in the experiment. In the remaining sessions we will often breakdown a trial into its component parts of treatments, layout and measurements. Later, in Session 2, we will use these overall objectives of the trial to construct the objectives of the analysis. The idea that the analysis of the data must be able to satisfy the objectives of the trial is the dominant theme of this whole course.
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CIFOR–ICRAF achieves science-driven impact. We conduct innovative research, strengthen partners’ capacity and actively engage in dialogue with all stakeholders, bringing the latest insights on forests, trees, landscapes and people to global decision making.
CIFOR–ICRAF publishes over 750 publications every year on agroforestry, forests and climate change, landscape restoration, rights, forest policy and much more – in multiple languages.
Explore upcoming and past events across the globe and online, whether hosted by CIFOR-ICRAF or attended by our researchers.
CIFOR–ICRAF addresses local challenges and opportunities while providing solutions to global problems for forests, landscapes, people and the planet.
We deliver actionable evidence and solutions to transform how land is used and how food is produced: conserving and restoring ecosystems, responding to the global climate, malnutrition, biodiversity and desertification crises. In short, improving people’s lives.
