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Module 13 – Experiments (6 of 7 discussion 2) – Mod 13 Group 1

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Module 13 – Experiments (6 of 7 discussion 2) – Mod 13 Group 1

From 2020SP-MATH-160-6897

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DISCUSSION online class.png

Learn by Doing

Here are the directions, grading rubric, and definition of high-quality feedback for the Learn by Doing discussion board exercises.

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.

Grading

To view the grading rubric for this discussion board, click on menu icon (three vertical dots) and then select show rubric. Please note, if viewing the course via the Canvas mobile app the rubric does not appear on this page.

checkmark.png Tips for Success

      • Did you make a mistake in your initial post? No problem! Just be sure to reply to yourself and note any corrections that need to be made.
      • You are required to reply to two of your peers in this discussion; don’t forget to complete this requirement of the activity or you will lose points. Provide high-quality feedback to your peers.

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