The aim of Chaney et al Funhaler study was to test whether through positive reinforcement, children's compliance would improve compared to the other inhalers.
Chaney used a field experiment in a home setting, the IV was the inhaler (funhaler) and the DV was the compliance of the children, which was measured by the parents through self report.
Chaney's study included 32 kids ranging in ages 5-6, the childrens parents were called a week a week before the study, were then visited where they gave informed consent and completed a questionnaire on the childs current inhaler.
The study was done over two weeks, the funhaler was a self reinforcement object to encourage the children to use their inhaler as it was fun. Matched questionnaires were done by the parents after two weeks as well as a random check on the phone asking about the use of the funhaler.
The funhaler resulted in improved parent AND child compliance38% more parents had medicated children the previous day when phoned randomly 60% more kids took the recommended amount within the 2 weeks With the normal spacer (inhaler), only 3/30 parents reported always using it, vs. 22/30 with the funhaler
Research method- field experiment, so controlled = less extraneous variables, and self report from parents could've been biased due to social pressure to lie about their use of the funhaler Validity- high ecological validity, the kids already had inhaler experience so there could've been possible order effects