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Lecture 1

BIOL 1115 Lecture 1: Biology 1115 - Scientific Method

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Department
Biology
Course Code
BIOL 1115
Professor
Kenneth Nauman

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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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Description
SCIENTIFIC METHOD SCIENCE method for how work explaining Things > doesnt find Truth , Only best for explanation pnonomena SCIENTIFIC METHOD 1) Organization of Thought - observations making - asking a question - wl coming up 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
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