scientific method

http://classweb.gmu.edu/biologyresources/writingguide/ScientificPaper.htm


What are the steps of the scientific method?


I think this should add a little more to answering your questions.

First you have to decide what question(s) you want to answer — what hypothesis you want to test in relation to your theory. On that basis, you choose your variables for your experiment. The independent variable — the potential cause or stimulus for change — is typically manipulated by the experimenter. The dependent variable measures the effect or response to changing the independent variable.

The experimental and control groups are treated the same, except that the experimental group gets the independent variable, while the control group gets nothing or a placebo — some inactive ingredient to make them think they are getting the independent variable.

Both groups are treated alike in every other way to control for confounding variables — sometimes called extraneous variables — which might otherwise effect the dependent variable. Library (in addition to online) research in the area of your experiment is needed to discover what these variables might be.

As an example, suppose you hypothesize that an additive in toothpaste will reduce cavities. Randomly select two groups of subjects and note the cavities they have. Train them in how to brush their teeth. Both groups receive toothpaste, but the experimental group's toothpaste has the additive in it.

Some confounding variables are how they brush their teeth, when and how often they brush. (We try to control this with the training.) However, there are other extraneous factors we might want to be concerned about, like diet and previous history of cavities.

After a specified period, reexamine the subjects to see how many new cavities have developed.

I hope this helps a little more. Thanks for asking.


Ifthe rats are deprived of food then they will run faster.the food is the independent variable. dependent variable is how fast they run.rats that ate verses rats that didn't .the maze must stay the same.

  1. 👍 0
  2. 👎 0
  3. 👁 104
asked by Lance
  1. The scientific method are the principles and procedures for the arrangement of pursuit knowledge involving the recognition and the process of a problem, the collection of data through observation and experiment, and the formulation and testing of hypotheses. Or the scientific method could simply means the methods scientist use to solve a problem.

    1. 👍 0
    2. 👎 0
    posted by Bobbi
  2. YO MY HOME BOII U JUST DO M8

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Can I ask for the 3D model of the ammonium cyanate. It's formula mass and picture. I cannot find my Merck. Your school or public library is likely to have a Merck Handbook, and you may find it there.

    asked by Danielle Stacey on August 29, 2005
  2. social studies

    i got a presentation about social development and education? plzz tell me what to do I would suggest you start doing some research on social development and learning. Here is one you can start with:

    asked by abdul muqeet on November 17, 2006
  3. Physics - The scientific method

    Is the scientific method a clearly-defined set of steps and procedures? I don't think so... There is not just one scientific method, and each one probably involves solving things in a different way.

    asked by Anonymous on September 9, 2011
  4. biology

    The word step is misleading. http://biology.about.com/library/bltranslation.htm How many steps are there in translation? I've been searching and so far I have found a site that says that there are 5 steps, one that says 4 steps,

    asked by Lance on March 21, 2007
  5. French for "Miche"

    Salut! Voici le vocabulaire. If these work, I won't type them over! In the order you mentioned: 1. http://french.about.com/library/begin/bl_basic.htm (basic expressions) 2. http://french.about.com/library/begin/bl_numbers.htm

    asked by SraJMcGin on September 26, 2007
  6. math

    how do you add and subtract and multiply and divide fractions? I searched Google under the key words "fractions add subtract multiply divide" to get these possible sources:

    asked by josh on December 14, 2006
  7. human genome

    The human genome has far fewer genes than previously thought. All of the following are ways that cells theoretically can increase the types of proteins they produce except alternative splicing transcription factors compounding

    asked by kenneth on October 23, 2006
  8. PSYCHOLOGY answer included

    provide a situation when scientific method, case study method, survey method, Naturalistic observation method, Correlation method, and Experimental method could be applied would collecting DNA be for scientific mthod?

    asked by scooby on November 20, 2009
  9. world history

    how did the renaissance help pave the way for the scientific method? i have a quiz on a map test for the muslim area, i need help and badly. i cant study its impossiable If you have a new question, use the "Post a New Question"

    asked by tucker on September 27, 2006
  10. world history

    What are some good sites to use as a resource in writing a paper which would discuss two revolutions i.e. french revolution, etc.? American Revolution http://www.loc.gov/rr/program/bib/ourdocs/NewNation.html

    asked by ML on December 4, 2006

More Similar Questions