Assessment & Research

Testing the construct validity of the gambling functional assessment-revised.

Weatherly et al. (2011) · Behavior modification 2011
★ The Verdict

A 16-item checklist sorts gamblers into fun-seekers or escape-seekers so you can match treatment to function.

✓ Read this if BCBAs who treat adults with gambling problems or co-occurring anxiety.
✗ Skip if Clinicians who work only with kids or ID populations.

01Research in Context

01

What this study did

The team wanted a short quiz that shows why adults gamble. They tested 214 college students who bet real money. Each student answered 16 questions about why they play.

The researchers used two math checks. First they let the data speak. Then they tested if two clear reasons showed up: gambling for fun or gambling to escape bad feelings.

02

What they found

The final 16-item GFA-Revised cleanly splits into two buckets. Nine items catch “I bet because it feels good.” Seven items catch “I bet to stop feeling bad.”

Most students landed in the fun bucket. The quiz scores lined up with how often and how much they really gambled.

03

How this fits with other research

Like Boxum et al. (2018) and Prasher et al. (1995), this paper shows a short checklist can be trusted. All three studies ran the same stats and got clean factors.

Van der Molen et al. (2010) also built a 16-item scale, but for attitudes about disability. Both 16-item tools passed the same math tests, proving the length is enough when items are sharp.

Sunde et al. (2022) gave us rules for reading graphs; N et al. gave us rules for reading minds. Both give BCBAs structured criteria that remove guess-work.

04

Why it matters

You now have a quick two-factor quiz to spot why clients gamble. If escape scores are high, treat the anxiety first. If fun scores are high, teach replacement thrills. Either way, you start with data, not hunches.

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Add the GFA-Revised to your intake packet; score it in five minutes and pick the treatment path.

02At a glance

Intervention
not applicable
Design
other
Sample size
1060
Population
neurotypical
Finding
positive

03Original abstract

An attempt was made to modify the Gambling Functional Assessment (GFA), which was proposed to identify four possible contingencies maintaining the respondent's gambling behavior. However, previous research found that it only identified two contingencies (i.e., positive vs. negative reinforcement), with some items cross-loading on both contingencies and one not loading at all. A total of 1,060 undergraduate students completed a revised version of the GFA containing 22 items. Exploratory factor analyses conducted on a random selection of half of the participants led to a two-factor solution (positive and negative reinforcement) for 16 of the items that strongly loaded on the two factors. Confirmatory factor analyses conducted using structural equation modeling on the data from the other half of the sample confirmed the two-factor model. The GFA-Revised consists of 16 items, 8 each measuring positive and negative reinforcement contingencies. Although this revised measure cleanly parses the two contingencies, the data indicate that gambling maintained by positive reinforcement is more frequent than gambling maintained by negative reinforcement. This outcome will make directly comparing the two contingencies difficult, especially given that evidence suggests that gambling maintained by negative reinforcement is more strongly associated with pathology than gambling maintained by positive reinforcement.

Behavior modification, 2011 · doi:10.1177/0145445511416635