Question

Principles of experimental design were developed by:

• A. Wilcox
• B. R.A. Fisher
• C. Cox and Cochran
• D. WG Cochran

Hint:

For competitive exams, note that Cochran's 1957 work is considered the definitive formulation of experimental design principles.

Answer 1

The Correct Option is D

Step 1: Fisher introduced the core ideas but did not formalise the complete system.
Step 2: The Cox and Cochran collaboration came later, for specialised designs.
Step 3: WG Cochran individually systematised the principles into the framework credited here.
Step 4: Correct answer, WG Cochran.