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Kenneth Nauman (10)
Lecture 1
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SCIENTIFIC METHOD
SCIENCE
↳method for explaining how Things work
>
doesnt find Truth ,Only best explanation for pnonomena
SCIENTIFIC METHOD
1) Organization of Thought

making observations

asking aquestion

coming up wl hypothesis
2) hypothesis Testing

disprove null hypothesis (Ho )
experiment will show no effect
↳
alterate hypothesis (Ha )predict experiment will show effect
3) publication

'magazine
'

refereed journal
°
article only published if judged by at least 2experts in the
field
or
Not all equally reliable
0controlled conditions One variable
2
large sample size
represent whole population →more reliable
3
precise objective measurements
4
accurate recording →repeatable
5
randomization
6
blinding (single 3double )
7
analyzing results
↳statistical Test estimate probability that adifference between
Treatment is due to random , background variation
↳pE0.05 = statistically significant →reject Ho
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