Evaluation of the REDUQ Smoking Reduction Intervention for COPD smokers unwilling to quit

Type opdracht: Ba

In –of extern?: Intern (part of current PhD project in PHT)

Max. aantal studenten mogelijk: 3

Zelf data verzamelen? No

Type onderzoek: Quantitative & qualitative (mixed-methods)


REDUQ is a novel intervention aimed at smoking COPD patients, who have been repeatedly unable to quit in the past and have become difficult to re-motivate for new quit attempts. By offering a reduced smoking intervention, we expected that these patients would regain some self-control over their addictive smoking habit. This would re-build both their motivation and self-efficacy to retry quitting smoking eventually. Results of the RCT showed, however, that the REDUQ intervention was not effective in either attaining sustained reduced smoking or smoking cessation in comparison to the self-help control intervention. To gain a better understanding of this negative outcome, a final group of n=22 patients was included in a new study, a single-case experimental design (SCED). In this SCED study all participants were monitored weekly during 26 weeks with a brief questionnaire administered by phone. Variables monitored include behavioral variables such as the daily cigarette consumption, and psychosocial predictors of behavior change such as social norms and self-efficacy towards quitting.

Wie zoeken we?

Students who are interested in the practice of health psychological interventions in a hospital setting, and are open to acquiring skills in novel methodology (ecological momentary assessments; SCED).

Wat bieden we?

A challenging assignment on a highly relevant health issue. A longitudinal dataset which allows a mix of qualitative and quantitative analysis techniques

Meer info: Marcel Pieterse (

Begeleiders: Marcel Pieterse (; Hester Trompetter


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