When we design the experiment in such a way that the variations caused by extraneous factors can all be combined under the general concept of "chance", it represents which principle?
When we design the experiment in such a way that the variations caused by extraneous factors can all be combined under the general concept of "chance", it represents which principle? Correct Answer Principle of randomization
The principle of randomization involves the allocation of treatment to experimental units at random to avoid any bias in the experiment resulting from the influence of some extraneous unknown factor that may affect the experiment.
Key Points
- Randomization is a random process of assigning treatments to the experimental units.
- The random process implies that every possible allotment of treatments has the same probability.
-
The purpose of randomization is to remove bias and other sources of extraneous variation which are not controllable.
Therefore, When we design the experiment in such a way that the variations caused by extraneous factors can all be combined under the general concept of "chance", it represents the Principle of randomization.
Additional Information
- According to the Principle of Replication, the experiment should be repeated more than once. By doing so the statistical accuracy of the experiments is increased.
- According to the principle of local control, we first divide the field into several homogeneous parts, known as blocks, and then each such block is divided into parts equal to the number of treatments.
- Operational control involves control over intermediate-term operations and processes but not business strategies. Operational control systems ensure that activities are consistent with established plans.