Behavioral
economic
approaches
to
measuring
cannabis
demand
represent
a
well-validated,
low-cost
method
of
assessing
risk
for
hazardous
use.
One
widely
used
measure
is
the
Marijuana
Purchase
Task
(MPT),
which
has
shown
good
psychometric
properties
across
multiple
samples.
However,
preliminary
data
suggest
that
changes
could
improve
task
ecological
validity
and
acceptability.
Using
predominantly
White
convenience
sample,
this
study
aimed
develop
revised
MPT
uses
modern
dispensary
scenario
better
reflect
national
trends
in
use
(e.g.,
forms
consumption).
Participant
inattentiveness
due
increased
length
difficulty
estimating
purchases
next
month
may
have
impacted
measures.
Lessons
learned
are
discussed
inform
future
efforts
assess
manner
more
reflective
naturalistic
use:
including
minimizing
participant
burden,
setting
higher
price
ceilings
increase
utility,
considering
person-level
factors
influence
demand.
Experimental and Clinical Psychopharmacology,
Год журнала:
2022,
Номер
31(1), С. 238 - 247
Опубликована: Май 19, 2022
Cannabis
demand
(i.e.,
reinforcing
value)
can
be
assessed
using
a
marijuana
purchase
task
(MPT;
assesses
hypothetical
purchasing
of
cannabis
at
escalating
prices)
and
has
been
related
to
use
frequency,
problems,
disorder
symptoms
in
adults.
yet
studied
adolescents,
which
inform
prevention
intervention
efforts
reduce
cannabis-related
risks.
The
present
study
sought
validate
the
MPT
with
sample
late
adolescent
lifetime
users.
Participants
aged
15-18
years
old
(n
=
115,
Mage
16.9,
SD
0.9)
residing
state
legalized
completed
online
assessments
baseline
6-month
follow-up.
Convergent
divergent
validity
was
examined,
while
principal
component
analysis
conducted
determine
factor
structure
assess
predictive
validity.
Three
indices,
Omax
maximum
expenditure
on
cannabis),
breakpoint
price
suppressing
consumption
zero),
alpha
degree
decreases
increasing
price)
were
all
significantly
associated
use,
consequences,
craving,
expenditures
differentiated
low-risk
users
high-risk
as
measured
by
Use
Disorders
Identification
Test-Revised
(CUDIT-R).
A
two-factor
solution
reflecting
amplitude
(intensity,
alpha,
Omax)
persistence
(breakpoint,
Pmax)
observed.
Both
factors
consequences
regression
models.
At
follow-up,
consequences;
not
either
outcome.
These
findings
provide
initial
evidence
that
is
valid
measure
for
assessing
among
adolescents
used
understand
mechanisms
use.
(PsycInfo
Database
Record
(c)
2023
APA,
rights
reserved).
Journal of Studies on Alcohol and Drugs,
Год журнала:
2024,
Номер
85(6), С. 885 - 894
Опубликована: Май 30, 2024
Social
environment
is
a
key
determinant
of
substance
use,
but
cannabis-related
social
network
analysis
not
common,
in
part
because
the
assessment
burden
comprehensive
egocentric
analysis.
The
current
pre-registered
secondary
assessed
psychometric
properties
(i.e.,
convergent,
criterion-related,
incremental
validity)
Brief
Cannabis
Density
Assessment
(B-CaSDA)
cross-sectional
sample
adults
who
use
cannabis
(N
=
310)
using
survey-based
design.
B-CaSDA
assesses
quantity
and
frequency
for
respondent's
four
closest
(nonparent)
relationships.
Ego
severity
was
elevated
each
additional
person
used
at
all
or
daily
individual's
network.
indices
frequency,
quantity,
total
score)
were
positively
correlated
with
consumption,
indicators,
established
risk
factors
harmful
use.
also
discriminated
between
those
above
below
clinical
cutoff
on
Use
Disorder
Identification
Test-Revised
(CUDIT-R).
Finally,
omnibus
models
that
included
common
severity,
index
contributed
variance
when
predicting
CUDIT-R
score,
quantity-frequency
subscale.
results
suggest
has
potential
to
expand
research
misuse
by
increasing
its
feasibility
diverse
designs.
Experimental and Clinical Psychopharmacology,
Год журнала:
2024,
Номер
32(5), С. 529 - 541
Опубликована: Июнь 20, 2024
Behavioural
economic
demand
for
cannabis
and
alcohol
is
robustly
associated
with
use
use,
respectively.However,
few
studies
have
examined
the
contributions
of
to
simultaneous
which
common
among
young
adults.We
prospective
associations
propensity
(broadly
defined
as
using
both
in
same
day)
consumption
during
days
adults.Young
adults
reporting
(N=107)
completed
a
Marijuana
Purchase
Task
assessing
an
Alcohol
demand.They
then
daily
smartphone
surveys
over
21
use.Multilevel
models
revealed
that
higher
(i.e.,
Omax,
Pmax,
intensity;
lower
elasticity)
was
uniquely
greater
relative
nonuse.In
addition,
(lower
cannabis-only
(higher
breakpoint
alcohol-only
use.Further,
limited
days,
were
overall
flower
consumption,
consumption.Results
suggest
individual
differences
may
contribute
behaviours
substance-specific
pattern.Further,
more
strongly
drive
tendency
engage
(versus
non-use)
demand.
Behavioral
economic
approaches
to
measuring
cannabis
demand
represent
a
well-validated,
low-cost
method
of
assessing
risk
for
hazardous
use.
One
widely
used
measure
is
the
Marijuana
Purchase
Task
(MPT),
which
has
shown
good
psychometric
properties
across
multiple
samples.
However,
preliminary
data
suggest
that
changes
could
improve
task
ecological
validity
and
acceptability.
Using
predominantly
White
convenience
sample,
this
study
aimed
develop
revised
MPT
uses
modern
dispensary
scenario
better
reflect
national
trends
in
use
(e.g.,
forms
consumption).
Participant
inattentiveness
due
increased
length
difficulty
estimating
purchases
next
month
may
have
impacted
measures.
Lessons
learned
are
discussed
inform
future
efforts
assess
manner
more
reflective
naturalistic
use:
including
minimizing
participant
burden,
setting
higher
price
ceilings
increase
utility,
considering
person-level
factors
influence
demand.
