Besuretostatewhatyourdependentand

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Unformatted text preview: 
 dies
from
lung
cancer.
Because
of
her
father’s
sudden
 death
she
decides
to
ul.mately
quit
smoking.
What
 threat
to
internal
validity
is
this
an
example
of?
 •  •  •  •  Mortality
 Matura.on
 History
 Selec.on
 
Which
of
the
following
list
the
threats
to
 external
validity?
 A.
Time,
people,
place
 B.
Instrumenta.on,
selec.on,
mortality
 C.
History,
matura.on,
regression
 D.
Time,
selec.on,
history
 E.
Mortality,
history,
people
 Compare
and
contrast
internal
and
external
 validity
 What
...
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