The authors regret to have made an incorrect interpretation of the scoring of the item “Overwhelmed” in the study-specific questionnaire used in the original article (Hentati et al., 2021). In the article, a high score on the item “Overwhelmed” was interpreted as feeling more overwhelmed by the user interface. In fact, the item was reverse scored, and a higher score on the item signifies feeling less overwhelmed. Below we enumerate which sections of the paper need correction to reflect the correct interpretation of the item “Overwhelmed”.
Abstract
It currently states:
“Other findings included participants using the optimized UI rating the intervention as easier to understand, while feeling more overwhelmed, than those using the basic UI.”
It should instead state (changes highlighted in bold):
“Other findings included participants using the optimized UI rating the intervention as easier to understand, and feeling less overwhelmed, than those using the basic UI.”
Material and methods
The following sentence highlighted in bold should be added: "This questionnaire consisted of four questions focusing on whether 1) the intervention was perceived as likable, 2) the intervention was easy to understand, 3) examples given felt relevant, and whether 4) functionality and information contributed to the participant feeling overwhelmed. The scoring of the fourth item was reversed, and thus a higher score signifies feeling less overwhelmed.”
Results
It currently states:
“...with participants who used the optimized UI again scoring higher, i.e., feeling more overwhelmed.”
It should instead state (changes highlighted in bold):
“...with participants who used the optimized UI again scoring higher, i.e., feeling less overwhelmed.”
Discussion
The following part of the discussion is not accurate and should thus be removed in its entirety:
“The results regarding participants feeling more overwhelmed by using the optimized UI might be due to that the optimized UI did actually require more of the user. Participants who used the optimized UI were however not only more behaviorally engaged than the other group, but did also rate the intervention as easier to understand. This could be interpreted as even though the optimized UI was perceived as more overwhelming, it did apparently not reach a level of overwhelmingness preventing participants from understanding or engaging with the exercises. An illustrative quote in line with this from a participant who used the optimized UI is the following: “As with all new digital tools, it takes a while to get used to it, as with everything you do for the first time. But it is not difficult at all. […]” This again underscores the importance of putting self-reported data regarding engagement and satisfaction in relation to behavioral engagement data (Perski et al., 2017).”