Evalute capafons 1998
G
volunteer sample via media advert
lowers generalisability because the pps were eager to be cured
of their flying phobia where as someone too scared to even try may have altered the results
eliminates bias
41 pps, both male and female
R
standardised procedure, easy to replicate
dependent variable - how scared the pps were
psychological measures
palm temperature
heart rate
muscular tension
timings
12-15 sessions
2 one hour sessions a week
V
he could've done a follow up session after a while to see if spontaneous recovery had occurred and if he had to do top up sessions
in vitro
treatment group shown video of a flight
capafons could have took them onto a real plane and maybe had a short flight
E
only half of the pps were in the treatment group, the other half were in the control group so even though they signed up to get treatment for their fear, they didn't get it
this is a violation on the BPS guidelines as they're being deceived so the study isn't very ethical
2 control groups
demand characteristics, motivated to recover
scales and surverys - EPAV = the occurrence of catastrophic events during the flight
physiological arousal exactly 3 minutes before showing them the video of a flight including flight activities e.g packing and being at the airport
8 weeks later they watched the video again and the DV was measured again
see whether the effects of systematic desensitisation were long lasting