Simple manipulation checks, such as asking participants to rate their mood, should be done throughout the experiment to
determine changes in mood that occur after the induction technique.
The initial
mood of each patient was assessed by a clinician, with
changes in mood monitored by self - reported questionnaires; the
mood states were then used to
determine the accuracy of the classifiers, which use HRV to predict
mood, with an accuracy of around 90 %.28 No data were collected on healthy controls (or another clinical group), making it difficult to establish the specificity of the findings to BD.