Had there been more homogeneity in the delivery components and target groups for the interventions, so that we could take the more usual cost-effectiveness approach of pooling interventions of the same type and evaluating cost-effectiveness from the pooled intervention effect and modal intervention cost, none of the interventions for promoting fruits and vegetables would be cost-effective.
Another challenge is to properly contextualize discussions on a new health intervention relative to existing health interventions targeting the same disease, to other interventions of the same modality (e.g. drugs, vaccines) and to priorities within the wider health system (WHO 2005; Stop TB Partnership and WHO 2007).
Several recommendations for how to minimize the allegiance effect are considered: involving several investigators who represent a "mix of therapy allegiances", comparing interventions of the same length and duration, using blinded raters for process and outcome analyses, and conducting both interventions in all sites [ 53].
Lind did not give each intervention to the same number of sailors because he thought that all the interventions had an equal chance of being effective.
In the abacus we carry out a human intervention of exactly the same sort as in combining numbers on paper, but in this case the numbers are represented by the positions of balls along a wire rather than by pen or pencil marks.
This gain was hypothesized in the form of improved test scores comparing the pre-intervention assessment of conceptual knowledge and a post-intervention assessment of the same knowledge.
Some of the features that Mullan analyses as stylistic strategies – surprise switches of perspective, sudden unexpected authorial interventions, repetitions of the same word over and over – may well be strategies, but they're also aspects of her lucky freedom, making up the conventions as she goes along, answerable to no one's expectations.
32 33 We define number of migraine days as the primary end point and expect at least a 25% reduction in average number of days from baseline to the end of intervention, with the same level of reduction being maintained at follow-up.
In the absence of evidence for the time course of intervention effects, the same estimates were used to model the intervention effect in each of the first five or ten cycles of the model as appropriate.
