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Bootstrap method in dose-response modelling

In a previous blog, we looked at fitting dose-response models to quantal data in ecotoxicology scenarios. To recap, quantal data refers to data where the response variable takes a binary... read more →

10th November 2017
Stephen Mackie
2 Comments
Ecotox

The Jonckheere-Terpstra test for ordered differences

Recently our team at Quantics were working on an analysis for an ecotoxicology client which called for us to use the Jonckheere-Terpstra test for ordered differences which is recommended by... read more →

4th April 2017
Sydney Toupin
No Comments
Ecotox

Improving confidence limits for concentration-response models with quantal data

In ecotoxicology statistics there are three main types of data: continuous discrete quantal / binary Continuous data is that which can take a (numerical) value over a continuous range (e.g.... read more →

11th October 2016
Daniel James
No Comments
Ecotox

Ecotoxicology – NOEC and LOEC

Welcome to Quantics' ecotoxicology blog. This blog will explore some of the interesting topics in ecotoxicology statistics with particular focus on the Organisation for Economic Cooperation and Development (OECD) guidance.... read more →

12th July 2016
Daniel James
1 Comment
Ecotox

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Ecotox Blog

Bootstrap method in dose-response modelling

The Jonckheere-Terpstra test for ordered differences

Improving confidence limits for concentration-response models with quantal data

Ecotoxicology – NOEC and LOEC

Be First In Line