*2.2. Case Study*

The evaluation of this methodology was carried out in a secondary school in Seville (Spain). A total of 99 students were part of this study, aged between 12 and 14. According to the literature, this range of age is more appropriate to express descriptions and relationships between students and the built environment [37].

The study period was between 2 and 11 October 2019. The monitoring of indoor environmental parameters (temperature, relative humidity) was carried out simultaneously with the reflection-by-drawing exercise and the completion of questionnaires by the students. For the field measurements, a portable device was arranged in each class during the whole class time for every session and classroom. Despite the date, and as an evidence of the climate change ravages, the range of outdoor temperatures corresponds to the studied period, the temperature variation exceeds 15 ◦C, recording outdoor maximum temperature of 34.3 ◦C and minimum temperature of 19.4 ◦C. This difference has a great influence on the variation in the thermal sensation of the students throughout the day. The stablished schedule for students' evaluations was set between 08:00 and 14:30 hours, since children complete their activities during the class time. The indoor environmental conditions in classrooms in terms of support for heating, ventilation and air conditioning (HVAC) equipment were freely evolving.

To carry out the exercise in each classroom, four sessions were needed, taking three consecutive classes in the same week and lasting as much as 1 hour per session. The facilitator-researcher led these sessions. During this time, the tasks to complete were the following:


## *2.3. Qualitative Technique: Drawings*

Currently, drawing is a tool with unquestionable scientific rigor. It is used in medical tests, in pediatrics and psychology for instance, and its validation is based on evidence, recognized as an emotional driver to know and evaluate children behavior, even for the detection and monitoring of emotional, cognitive or behavioral disorders [46]. Despite that images in general are considered qualitative data [27], there are quantitative tests able to assess children drawings [47].

Drawings are also used as part of mixed methods, as well as triangulated with other evaluation techniques that support or refute the results, often applied in the child population. Well-known and validated drawing tests are Draw-a-man Test (DAMT), Family Drawing, linked to Attachment Theory [48], or Kinetic Family Drawing [49], validated with others, such as problem behavior tests, to predict and mediate internal childhood behavior problems [49]. Researchers often compare with questionnaires and objective visual indicators and given insights on familiar relationships, following the art-based phenomenological analytic approach [50]. Other research applies creative techniques as writing and storytelling to work out psychological disorders [51].
