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When a Sugar Pill Soothes Pain

8th grade nonfiction passage about the placebo effect: 285 words, seven questions, an answer key and vocabulary.

8th grade nonfiction the placebo effect 285 words

When a Sugar Pill Soothes Pain

Imagine a medical test in which half of the volunteers receive a pill with a real pain medicine and the other half receive a pill made of sugar. Strangely, many people in the sugar group report that their pain eased. This is called the placebo effect, and it is one of the most closely studied puzzles in medicine.

A placebo is a treatment with no active ingredient for the condition being treated. It might be a sugar pill, a salt water injection, or a pretend procedure. Researchers do not think the sugar is doing anything. Instead, the improvement seems to come from the person's expectations. When someone believes a treatment will help, the brain can change how it handles pain signals, and brain scans have shown real changes in activity during placebo relief. Some studies suggest that the body may release its own natural pain-relieving chemicals.

Because of this effect, scientists who test new medicines must be careful. If they simply gave a new drug to patients and watched them improve, they could not tell whether the drug or the expectation caused the change. So they design a controlled trial. One group gets the real drug, and the comparison group gets a placebo. In the best designs, neither the patients nor the doctors know who received which, a method called double blind. Only if the drug beats the placebo does it count as effective.

The placebo effect has limits. It tends to change how people feel, such as pain, nausea, or tiredness, and it cannot shrink a tumor or cure an infection. That is why a placebo never replaces real medicine, and why honest testing protects people from treatments that only seem to work.

Questions

  1. What is a placebo? in the text

  2. What seems to cause the relief people feel from a placebo? in the text

  3. What have brain scans shown during placebo relief? in the text

  4. What does double blind mean in a medical test? in the text

  5. Why can scientists not simply give a new drug to patients and watch them improve? think about it

  6. What cannot the placebo effect do? in the text

  7. Why does honest testing protect people? think about it

Words to know

placebo
a pretend treatment with nothing active inside it
expectations
what a person believes will happen
controlled
set up with a comparison group to test fairly
effective
able to do the job it is meant to do
ingredient
one of the parts that something is made from
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One passage, three levels

The same topic and facts written three ways, so a mixed class can read and talk about one text. Each group’s sheet shows only a shape; the key says which is which.

● Easier · 232 words · Flesch-Kincaid grade 4.5

Picture a medical test. Half of the people get a pill with real pain medicine. The other half get a pill made of sugar. Strangely, many people in the sugar group say their pain got better. This is the placebo effect. Scientists have studied it for a long time.

A placebo is a treatment that has nothing active in it for the problem. It could be a sugar pill or a shot of salt water. The sugar is not doing the work. The relief seems to come from what the person expects. If you believe a treatment will help, your brain can change how it handles pain signals. Brain scans show real changes during placebo relief. The body may also make its own pain-fighting chemicals.

This matters for testing new medicines. Say doctors give a new drug and patients get better. They cannot know if the drug worked or if the patients just expected it to. So they run a controlled trial. One group gets the drug. Another group gets a placebo. In a double blind trial, neither patients nor doctors know who got which. The drug must do better than the placebo to count.

The placebo effect has limits. It can change how people feel, like pain or tiredness. It cannot shrink a tumor or cure an infection. So a placebo never replaces real medicine. Honest testing keeps people safe.

▲ This passage · 285 words · Flesch-Kincaid grade 8.3

Imagine a medical test in which half of the volunteers receive a pill with a real pain medicine and the other half receive a pill made of sugar. Strangely, many people in the sugar group report that their pain eased. This is called the placebo effect, and it is one of the most closely studied puzzles in medicine.

A placebo is a treatment with no active ingredient for the condition being treated. It might be a sugar pill, a salt water injection, or a pretend procedure. Researchers do not think the sugar is doing anything. Instead, the improvement seems to come from the person's expectations. When someone believes a treatment will help, the brain can change how it handles pain signals, and brain scans have shown real changes in activity during placebo relief. Some studies suggest that the body may release its own natural pain-relieving chemicals.

Because of this effect, scientists who test new medicines must be careful. If they simply gave a new drug to patients and watched them improve, they could not tell whether the drug or the expectation caused the change. So they design a controlled trial. One group gets the real drug, and the comparison group gets a placebo. In the best designs, neither the patients nor the doctors know who received which, a method called double blind. Only if the drug beats the placebo does it count as effective.

The placebo effect has limits. It tends to change how people feel, such as pain, nausea, or tiredness, and it cannot shrink a tumor or cure an infection. That is why a placebo never replaces real medicine, and why honest testing protects people from treatments that only seem to work.

■ Harder · 307 words · Flesch-Kincaid grade 10.9

Imagine a clinical trial in which half of the volunteers swallow a pill containing a genuine painkiller while the other half swallow a pill made of nothing but sugar. Remarkably, a considerable number of people in the sugar group report that their pain diminished. This phenomenon is known as the placebo effect, and it remains one of the most intensively studied puzzles in all of medicine.

A placebo is a treatment that contains no active ingredient for the condition being addressed. It might take the form of a sugar pill, a salt water injection, or a pretend procedure. Researchers do not believe that the sugar itself accomplishes anything. Rather, the improvement appears to originate in the person's expectations. When someone is convinced that a treatment will help, the brain can alter the way it processes pain signals, and brain scans have revealed genuine changes in activity during placebo relief. Certain studies even suggest that the body may release its own natural pain-relieving chemicals.

Because of this effect, scientists who evaluate new medicines must proceed with great care. If they merely administered a new drug and observed that patients improved, they could not determine whether the drug or the patients' expectations had caused the change. They therefore design a controlled trial in which one group receives the real drug and a comparison group receives a placebo. In the strongest designs, neither the patients nor the doctors know who received which, an approach called double blind. A drug counts as effective only if it outperforms the placebo.

The placebo effect has firm limits. It tends to alter how people feel, such as their pain, nausea, or tiredness, and it cannot shrink a tumor or cure an infection. For that reason a placebo never replaces genuine medicine, and honest testing protects people from treatments that merely seem to work.

Download as one PDF

How to use it

  1. Press Read it big (or B) to put the text on the projector, or Full screen (F) to fill the whole screen.
  2. Ask the questions one at a time and use Show answer when the class has decided. A shows or hides every answer.
  3. Print student copy for the class, or Print with answers for yourself.

Ideas for class

  • Before reading, put placebo, expectations, controlled, effective and ingredient on the board with their meanings from the Words to know section and have students predict what the text will be about.
  • Read it aloud once while students follow along, then have them reread it alone or with a partner. At a calm 100 words a minute it takes about 3 minutes to read aloud.
  • Use the Read it big button (or B) to put the text on the projector, and Show answer on one question at a time so the class commits to an answer first.
  • Question 5 asks the reader to infer. Ask students to point to the words in the passage that led them to their answer.
  • Ask students to write one question the passage did not answer, then look for the answer in a book or on a classroom screen.
  • Print the student copy for independent work and keep the answer-key copy for yourself.

Related

Questions

What reading level is "When a Sugar Pill Soothes Pain"?

It was written for 8th grade. It has 285 words and works out to a Flesch-Kincaid grade level of about 8.3. That is a formula's estimate from sentence length and syllables, and it is not a Lexile or a guided reading level, so check it against your students.

What do the questions ask?

There are seven. 5 ask for something the text says directly and 2 ask the reader to work something out from clues. Each has an answer in the key, and the answers are written as a teacher would accept them, not as the only possible wording.

How long does it take to read?

About 3 minutes read aloud at 100 words a minute. For a one-minute fluency check, paste it into the fluency timer and use the word count.

Can I print it?

Yes. Print student copy gives the passage, the questions with lines to write on, and the word meanings. Print with answers gives the same page with the answers filled in. Both are made in your browser.

Is this passage from a published book?

No. It was written for Peabody Teach, so there is no book to buy and no login to read it.

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