2/// 13 part 2Experiments ( I post exampl for the right answer )

I’m trying to learn for my Mathematics class and I’m stuck. Can you help?

CONTEXT

A newspaper story in Knight Ridder Newspapers described an experiment in an article with the headline “Doctor Dogs Diagnose Cancer by Sniffing It Out.”

In the experiment researchers trained dogs to identify people with breast or lung cancer. The dogs were trained to lay down if they detected cancer in a breath sample. After the training, dogs sniffed different breath samples of people with and without cancer. Impartial observers watched the dogs and decided when the dog identified a person as having cancer. Researchers then revealed the condition of the person who gave the breath sample and determined if the dog had correctly identified the presence of cancer.

The newspaper states, “The researchers blinded both the dog handlers and the experimental observers to the identity of the breath samples.”

PROMPT

  1. Explain what the following sentence means. “The researchers blinded both the dog handlers and the experimental observers to the identity of the breath samples.”
  2. Explain why blinding in this experiment is important.

exampl for the right answer

ANSWER(S)

  1. “The researchers blinded both the dog handlers and the experimental observers to the identity of the breath samples.” This means neither the dog handlers nor the observers knew if the breath samples came from people with or without cancer.
  2. Blinding is important in this experiment because if the dog handlers or the observers knew which samples came from people with cancer, then they could unintentionally pass signals to the dogs and influence the dogs’ behavior.

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