# PlanTEA: Supporting Planning and Anticipation for Children with ASD Attending Medical Appointments
## 4 A First Evaluation of PlanTEA
### Results
\begin{table}
\begin{tabular}{c l c c c c c c c c} \hline \hline \multicolumn{2}{c}{**Questionnaire**} & \multicolumn{8}{c}{**Likert Scale**} \\ \cline{3-11} \multicolumn{2}{c}{} & \multicolumn{8}{c}{**Descriptive Statistics**} & \multicolumn{8}{c}{**Percentages**} \\ \hline
**ID** & **Statement** & **Mean** & **Median** & **Mode** & **1** & **2** & **3** & **4** & **5** \\ \hline \multirow{4}{*}{SUS1} & I think I would need help from a & & & & & & & & & \\  & person with technical & & & & & & & & & \\  & knowledge to use PlanTEA & & & & & & & & \\ \hline \multirow{4}{*}{SUS2} & I believe that the different & & & & & & & & & \\  & functions of PlanTEA are well & & & & & & & & \\  & integrated and are & & & & & & & & & \\  & easily accessible & & & & & & & & \\ \hline \multirow{4}{*}{SUS3} & I think most people would learn & & & & & & & & & & \\  & to use PlanTEA quickly & & & & & & & & & \\ \hline \multirow{4}{*}{SUS4} & I think I would need to learn & & & & & & & & & \\  & many other things before I & & & & & & & & & \\  & would be able to use & & & & & & & & & \\  & PlanTEA properly & & & & & & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Descriptive statistical results and response percentages related to usability of the tool (questions based on the SUS scale). According to the groups of participants, Table 4 shows the results obtained for the items and dimensions of the questionnaire. The main finding is that the mean of all groups in the different dimensions is similar, with only the therapists scoring lower in the PU dimension and the developers scoring lower in the ITU2 item. Both results are logical: in the first case, because therapists are more aware of the difficulties that children with ASD have; in the second case, because developers probably do not have family members with ASD, so they do not intend to use the application in the future. In addition, most participants (76%) showed interest in staying informed about the evolution of the application. Finally, open answers provided other relevant results about PlanTEA. Some of the comments received regarding the strengths of the application are:  
* \"Simple and easy. Very intuitive and understandable\". * \"It is very straightforward and well-focused\". * \"Intuitive, practical, doesn't take too much time to plan\". * \"Well adapted to the needs of people with ASD, user-friendly design and ease of use\". * \"Flexibility in generating sequences, inserting new pictograms as well as images from device memory\". * \"The fluid and natural interaction when creating the plans, which avoids having to create the pictograms \"by hand\" and spending a lot of time preparing such a plan manually. The possibility of including \"personalized\" pictograms of places, places and people known to the child, using the device's own camera, or locating them in any external repository\". The comments received highlight the usefulness of the tool developed, indicating that it is also flexible and usable, i.e., easy to use and learn by potential users. The possibility of including external resources (from the Internet or using the device's camera) is also highly valued. The possibility of including customized and familiar content is a particularly useful feature for people with ASD. In terms of weaknesses of the tool indicated by participants, the following are listed:  
* \"The possible overloading of some screens of the app, in particular in the communication notebook, where the inclusion of so many icons or pictograms on the screen at the same time can act as a distractor and interfere in the task\".