Instrumental Conditioning HULL

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Instrumental Conditioning
HULL
2
Clark Hull
“Mr. Learning” 1930s - 1950s
Wanted to build a “real” scienti"c
model along the hypothetico-
deductive logic of the physical
science
Axioms & postulates allow precise
predictions
Elizabeth Olson:
Hypothetico-deductive: postulates, derive
theorems, experiments as tests, revise as
needed. (influenced by Darwin & Newton)
Elizabeth Olson:
Hypothetico-deductive: postulates, derive
theorems, experiments as tests, revise as
needed. (influenced by Darwin & Newton)
3
Hull
A neobehaviorist: He tended to
stick with IV-DV relationships, but
intervening variables are OK as long
as they are tied directly to IVs and
DVs (Ss and Rs) —nothing mental
4
Hull
S R
Organis
m
Intervening
Variables
Hull put nonmental, mathematical
intervening variables inside the
behaviorists’ black box.
5
Drive Reduction Theory
S
Ē
R
= (
S
H
R
* D) – (
S
I
R
+ I
R
)
positiv
e
negativ
e
Net
tendenc
y for R
Tendenc
y to do R
Tendency
to not do
R
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