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Bio process of science.txt
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What is an hypothesis?
A testable and falsifiable explanation for a scientific explanation.
Anecdotal evidence
An informal observation that has not been systematically tested.
Experiment
A carefully designed test, the results of which will either support or rule out a hypothesis
Experimental group
The group in an experiment that experiences the experimental intervention or manipulation
Control group
The group in an experiment that experiences no experimental intervention or manipulation.
Placebo
A fake treatment given to control groups to mimic the experience of the experimental group.
Placebo effect
The effect observed when members of a control group display a measurable response to a placebo because they think they are receiving a real treatment
Independent variable
The variable or factor being deliberately changed in the experimental group.
Dependent variable
The measured result of an experiment, analyzed in both the experimental and the control groups.
Sample size
The number of experimental subjects or the number of times the experiment is repeated
Scientific theory
Hypothesis that is supported by years of rigorous testing and thousands of experiments
Randomized clinical trial
A controlled medical experiment in which subjects are randomly chosen to receive either an experimental treatment or a standard treatment (placebo)
science
the process of using observations and experiments to draw evidence-based conclusions
peer review
a process in which independent scientific experts ensure each study has been designed and interpreted appropriately
about hypotheses
hypotheses can never be proved true once and for all
if a hypothesis is shown to be false, it can be rejected and removed from the list of possible answers to the original question
if the data support the hypothesis, it will be accepted until further testing and data show otherwise
process of science
initial observations generate questions
study peer-reviewed scientific literature
make scientific hypotheses that are testable and falsifiable
carry out controlled experiments
analyze experimental data
make conclusions supported by data
if results do not support hypothesis - test alternative hypothesis
if results support hypothesis - rigorously test hypothesis with more experiments
publish results in peer-reviewed publications
Author
babaghannouj
ID
106720
Card Set
Bio process of science.txt
Description
biology ch 1
Updated
2011-10-18T18:41:35Z
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