Such research has consistently demonstrated that the reduction of interpretive bias favouring negative resolutions of ambiguity also reduces emotional vulnerability (cf. MacLeod and Mathews 2012).
The reduction in negative interpretive bias in the imagery condition was significantly greater than that in the non-imagery condition, t(14) = 4.65, p < .001, d = 2.32.
The reduction in negative interpretive bias in the imagery condition was significantly greater than that in both the non-imagery, t(24) = 3.99, p = .001, d = 0.77, and the no treatment condition, t(24) = 2.67, p = .013, d = 0.73.
We hypothesised that: The imagery CBM-I would be successfully translated to and applied in the new population, such that participants in the imagery condition would show improvements in symptoms of depression and anxiety, and reduction in negative interpretive bias over the 1-week training and at 2-week follow-up.
The imagery CBM-I would be successfully translated to and applied in the new population, such that participants in the imagery condition would show improvements in symptoms of depression and anxiety, and reduction in negative interpretive bias over the 1-week training and at 2-week follow-up.
Although it is not possible to draw conclusions about causal inference from these correlational data, they are at least consistent with the argument that the greater the extent to which whatever intervention (or no intervention) the participants engaged in modified their interpretive bias or imagery vividness, the more they experienced a reduction in symptoms of depression.
We employed descriptive and interpretive analysis of focus group transcripts and field notes, with data reduction via coding and editing for development of major themes and subthemes.
However, the correlations suggest that for the sample as a whole, reduction in symptoms of depression was related both to reduction in negative interpretive bias, and to increase in imagery vividness over the 1 week from pre to post-treatment.
On the basis of previous findings 7 16 we predict that patients randomised to positive imagery CBM will evidence significant reductions on primary measures of depressive symptoms (BDI-II, PHQ9) and interpretive bias (AST-D), and on a secondary measure of psychological distress (K10) following the 1-week CBM intervention.
Nvivo software [ 48] will be used to assist with organization of data during thematic analysis, and data analyzed using the interpretive descriptive method [ 45]. 'The process of qualitative data analysis will use the three step method of data reduction, data display, and drawing conclusions/verification [ 49], and contextualized using the postcolonial theoretical lens provided by Battiste [ 22].
