Welcome
What are you trying to do?
A study for my organisation in agriculture and food science.
Your path
Create the study and set the discipline
The discipline decides what every later page shows you.
Decide whether people are involved
If your data is about machines, facilities or finances rather than people, declare no human subjects and the data protection conditions do not apply. The declaration is checked.
Collect or import
Collect through ZStat with consent and withdrawal, or bring a CSV, Excel or SPSS file you already have.
Analyse and compare
Between sites, periods, groups or programmes - with the effect size, because significance alone does not tell a manager whether it matters.
Produce the assurance pack
Generated from your own installation, for a funder or a data protection officer.
What people in your field ask
Block the field - randomise treatments to plots - analyse at the plot level - separate the means.
- Which variety or treatment yielded best?one way anova
- Two factors at once - variety and fertiliser?factorial anova
- My field slopes. Does that ruin the trial?factorial anova
- Does the treatment relate to a continuous measure?correlation matrix
- How long does the produce keep?kaplan meier
Watch for: Treating fifty plants from one plot as fifty observations. Randomisation was applied to plots, so the plot is the experimental unit and counting plants inflates n dramatically.
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