15250-m-cuypers

77 Decision aid development and usability testing 4 Table 4. IPDASi v3 Checklist Dimension Item Result Information 1. The decision support technology describes the health condition or problem (intervention, procedure or investigation) for which the index decision is required ü 2. The decision support technology describes the decision that needs to be considered (the index decision) ü 3. The decision support technology describes the options available for the index decision ü 4. The decision support technology describes the natural course of the health condition or problem, if no action is taken. ü 5. The decision support technology describes the positive features (benefits or advantages) of each option ü 6. The decision aid describes negative features (harms, side effects or disadvantages) of each option. ü 7. The decision support technology makes it possible to compare the positive and negative features of the available options. ü 8. The decision support technology shows the negative and positive features of options with equal detail (for example using similar fonts, order, and display of statistical information). ü Probabilities 1. The decision support technology provides information about outcome probabilities associated with the options (i.e. the likely consequences of decisions) ü 2. The decision support technology specifies the defined group (reference class) of patients for which the outcome probabilities apply. ü 3. The decision support technology specifies the event rates for the outcome probabilities (in natural frequencies). ü 4. The decision support technology specifies the time period over which the outcome probabilities apply. ü 5. The decision support technology allows the user to compare outcome probabilities across options using the same denominator and time period. ü 6. The decision support technology provides information about the levels of uncertainty around event or outcome probabilities (e.g. by giving a range or by using phrases such as ‘‘our best estimate is…’’) ü 7. The decision support technology provides more than one way of viewing the probabilities (e.g. words, numbers, and diagrams). ü 8. The decision support technology provides balanced information about event or outcome probabilities to limit framing biases. ü Values 1. The decision support technology describes the features of options to help patients imagine what it is like to experience the physical effects. ü 2. The decision support technology describes the features of options to help patients imagine what it is like to experience the psychological effects. ü 3. The decision support technology describes the features of options to help patients imagine what it is like to experience the social effects. ü 4. The decision support technology asks patients to think about which positive and negative features of the options matter most to them. ü