1. Scientific Method Flashcards

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1
Q

Scientific method def.

A

A way to solve a problem or a question.

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2
Q

Steps of scientific process

A
  1. Make observations
  2. Formulate a hypothesis and predict what you expect to find out.
  3. Design a controlled experiment and carry it out.
  4. Collect and analyse results and data.
  5. Form a conclusion.
  6. Report and publish the results
  7. Develop theories and principles.
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3
Q

Hypothesis def.

A

An educated guess based on observations.

Eg. Eating vitamin C prevents colds

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4
Q

Data def

A

Information gathered from the experiment.

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5
Q

Theory def.

A

Hypothesis that has been supported by experiments

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6
Q

Principle def.

A

When theory has been shown to be true when fully tested over a long period of time

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7
Q

Name limitations of scientific method

A
The extent of basic knowledge.
Ability to interpret the results.
Emotional involvement of investigator.
Time pressure
Lack of equipment
Ethical and legal reasons
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8
Q

Name principles of experimentation

A
  1. Safe experiment, common safety procedures in the lab.
  2. Must be a fair experiment.
    - More than one sample being tested, use a large sample.
    - Random selection, not the same ages/gender etc.
  3. Replicate experiment
    - Experiment must be published and repeated by a third party to achieve the same result.
  4. Double blind testing
  5. Use a control..
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9
Q

Double blind testing def.

A

Neither the person being tested or the person carrying out the experiment knows who is receiving the treatment or who is receiving the placebo.

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10
Q

Control def.

A

A control is a standard against which results of an experiment can be compared.
One variable between the control and the experiment

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11
Q

Ethical Reasons

A

Whether the experiment is being carried out for the right reasons or not.

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