Question:
The completely randomized design (CRD) of experimental design involves which of the following principles?
A. Randomization
B. Replication
C. Local control
D. Homogeneity
Choose the correct answer from the options given below:
The completely randomized design (CRD) of experimental design involves which of the following principles?
A. Randomization
B. Replication
C. Local control
D. Homogeneity
Choose the correct answer from the options given below:
A. Randomization
B. Replication
C. Local control
D. Homogeneity
Choose the correct answer from the options given below:
Show Hint
CRD uses 2 principles (Replication and Randomization); RCBD and LSD use all 3 principles (Replication, Randomization, and Local Control).
Updated On: Sep 15, 2026
- A only
- A and B only
- A, B and C only
- A, B, C and D
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Sir R.A. Fisher established three fundamental principles of experimental design: Replication, Randomization, and Local Control.
Step 2: Detailed Explanation:
1. Completely Randomized Design (CRD): Utilizes only two principles: Randomization (A) and Replication (B). It does not use Local Control because experimental units are assumed to be homogeneous (e.g., in laboratory or pot experiments).
2. Randomized Block Design (RCBD) and Latin Square Design (LSD): Utilize all three principles (Replication, Randomization, and Local Control).
Step 3: Final Answer:
Hence, CRD involves Randomization and Replication only (A and B only).
Sir R.A. Fisher established three fundamental principles of experimental design: Replication, Randomization, and Local Control.
Step 2: Detailed Explanation:
1. Completely Randomized Design (CRD): Utilizes only two principles: Randomization (A) and Replication (B). It does not use Local Control because experimental units are assumed to be homogeneous (e.g., in laboratory or pot experiments).
2. Randomized Block Design (RCBD) and Latin Square Design (LSD): Utilize all three principles (Replication, Randomization, and Local Control).
Step 3: Final Answer:
Hence, CRD involves Randomization and Replication only (A and B only).
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