mucantianicionam
Scientific Method: Observation
↓
Question
↓
Hypothesis
conclusion experiment
↑ results"
Hypothesis-proposed explanation for a set of observations.
Theory explanation
-
to
many observations , only accepted if there's a
lot of evidence t has never been false.
Controlled Experiment-test is run multiple times with one variable
changing.
Control Group-used to establish baseline for an experiment.
negative control group : no change expected
positive control group :
change is expected
Independent variable what -
is
being manipulated as a potential cause.
Dependent Variable -
response output, ,
or effect under
investigation .
Blind experiment -
some info . is withheld from participants.
single-blind experiment : friend is blind to type of flour used to
remove bias .
double-blind experiment : experimenter + participant don't know
flour used .
, The placebo effect-patient feels better after thinking they were given
treatment, even if none was given.
Bar graphs-used to compare categories of data.
Error bars : shows likelihood of a
meaningful difference existing
between 2 sets of data .
↓ Ic error bars overlap ,
↓I error bars don't overlap there's not a big dif in
sur
.
,
Survival time
un
radiationsignificatyaoaetime cancer
_
_
ㅇ
7) 0 yrs old ↑Ot you old
Line graphs-shows data that changes continuously.
Pie charts-show percentages.
Observational Studies-scientists examine test subjects ,
but don't manipulate
them .
Epidemiologica study- looks for health differences between 2
groups.
Clinical trials controlled -
experiments involving humans.
Critical thinking -
an unbiased analysis & evaluation of info .
in order to form
a
judgment.
Pseudoscience any field of -
study falsly presented as having a scientific
baris .
Anecdotal evidence-assertion based on a single or few examples ,
not
considered valid proof.
Scientific Method: Observation
↓
Question
↓
Hypothesis
conclusion experiment
↑ results"
Hypothesis-proposed explanation for a set of observations.
Theory explanation
-
to
many observations , only accepted if there's a
lot of evidence t has never been false.
Controlled Experiment-test is run multiple times with one variable
changing.
Control Group-used to establish baseline for an experiment.
negative control group : no change expected
positive control group :
change is expected
Independent variable what -
is
being manipulated as a potential cause.
Dependent Variable -
response output, ,
or effect under
investigation .
Blind experiment -
some info . is withheld from participants.
single-blind experiment : friend is blind to type of flour used to
remove bias .
double-blind experiment : experimenter + participant don't know
flour used .
, The placebo effect-patient feels better after thinking they were given
treatment, even if none was given.
Bar graphs-used to compare categories of data.
Error bars : shows likelihood of a
meaningful difference existing
between 2 sets of data .
↓ Ic error bars overlap ,
↓I error bars don't overlap there's not a big dif in
sur
.
,
Survival time
un
radiationsignificatyaoaetime cancer
_
_
ㅇ
7) 0 yrs old ↑Ot you old
Line graphs-shows data that changes continuously.
Pie charts-show percentages.
Observational Studies-scientists examine test subjects ,
but don't manipulate
them .
Epidemiologica study- looks for health differences between 2
groups.
Clinical trials controlled -
experiments involving humans.
Critical thinking -
an unbiased analysis & evaluation of info .
in order to form
a
judgment.
Pseudoscience any field of -
study falsly presented as having a scientific
baris .
Anecdotal evidence-assertion based on a single or few examples ,
not
considered valid proof.
