Surveys - Introduction

Question 1

What is the difference between Completely randomised design and randomised block design?

Answer 1

Completly randomised means that the treatments (A,B &C) are assigned randoly so one plot could have multiple of each treatment in in.
Randomised block design means the treatments are replicated one in each condition so that every conditon contains an A, B & C.

Question 2

What are the 2 types of experiments?

Answer 2

Controlled - (comparative, manipulative)

Observational - (absolute, mensurative)