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Name the 5 steps of the scientific method:
- Formulate a problem
- formulate a hypothesis
- collect data
- analyze data
- make conclusions
Which step of the scientific method is to ask a question?
formulate a problem
Which step of the scientific method is a propsed answer to questions?
formulate a hypothesis
a statement that relflects the research question - you will prove or disprove it
claims that there is no significant difference one way or another. Any difference in the positive or negative will prove your hypothesis false.
consistency between examiners and methods
gathering only the data that was intended to be collected
the consistency and stability of the data
two or more examiners agree in their findings
the same examiner can agree with himself
the entire group of individuals that have characteristics you want to study
because of limited resources you can't study every individual in a target population, you must take samples of the population and draw conclusions from that sample
each member of the population has equal chance of getting picked
randomly selecting participants from a certain strata or group
select subjects by including every nth person on a list
using the group that is most readily available
The same group that recieves the experimental tx
the sample group that does not receive the tx - though they think they do. The placebo group
groups are randomly assigned to the control or experimental groups; after a specified length of time, the participants switch
one side of the mouth is used for experimental tx while the other side of the mouth is left untreated as control
investigators and subjects don't know who's taking the placebo
using a control group is impossible or impractical
the outcome you are trying to study:
in a study about the effectiveness of a high BP med, you are trying to see the outcome by measuring the pts BP; what is the BP?
What affects the outcome; in a study about the effectiveness of a high blood pressure med; the med is what?
the independant variable
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