BIOL2022 L04 Sampling and experiments: Design is all! #2 Avoid confounding: PROCEDURAL CONTROLS and REPLICATION

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Module 1, Lecture 4 By the end of this lecture you should understand: - The need for proper controls in experiments o Effectively for everything you do! - The need for interspersion of treatments
Michael Jardine
Quiz by Michael Jardine, updated more than 1 year ago
Michael Jardine
Created by Michael Jardine over 5 years ago
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Question 1

Question
Prediction: If snakes are experimentally excluded, then the population of rabbits will increase, or at least will be greater than that where snake predation happens. Design: Exclusion fences. Problem: Hawks perch on fences using them as a vantage point from which to predate on the rabbits. Procedural control: [blank_start]____________[blank_end]
Answer
  • Cage with roof only (no fence)
  • Fence with holes
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