You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Allocation concealment is not possible in a research study conducted on the effects of Risperodone at NIMHANS, Bangalore. Selection bias in a study can be eliminated by which of the following procedures? and explain in detail?
Two strategies are used to reduce selection bias: allocation concealment and randomization. The ideal strategy to eliminate selection bias is randomization.