The Illusion of Performance: The Effect of Phantom Display Refresh Rates on User Expectations and Reaction Times
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2024
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866911804129542144 |
|---|---|
| author | Bosch, Esther Welsch, Robin Ayach, Tamim Katins, Christopher Kosch, Thomas |
| author_facet | Bosch, Esther Welsch, Robin Ayach, Tamim Katins, Christopher Kosch, Thomas |
| contents | User expectations impact the evaluation of new interactive systems. Increased expectations may enhance the perceived effectiveness of interfaces in user studies, similar to a placebo effect observed in medical studies. To showcase the placebo effect, we conducted a user study with 18 participants who performed a target selection reaction time test with two different display refresh rates. Participants saw a stated screen refresh rate before every condition, which corresponded to the true refresh rate only in half of the conditions and was lower or higher in the other half. Results revealed successful priming, as participants believed in superior or inferior performance based on the narrative despite using the opposite refresh rate. Post-experiment questionnaires confirmed participants still held onto the initial narrative. Interestingly, the objective performance remained unchanged between both refresh rates. We discuss how study narratives influence subjective measures and suggest strategies to mitigate placebo effects in user-centered study designs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_17706 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The Illusion of Performance: The Effect of Phantom Display Refresh Rates on User Expectations and Reaction Times Bosch, Esther Welsch, Robin Ayach, Tamim Katins, Christopher Kosch, Thomas Human-Computer Interaction User expectations impact the evaluation of new interactive systems. Increased expectations may enhance the perceived effectiveness of interfaces in user studies, similar to a placebo effect observed in medical studies. To showcase the placebo effect, we conducted a user study with 18 participants who performed a target selection reaction time test with two different display refresh rates. Participants saw a stated screen refresh rate before every condition, which corresponded to the true refresh rate only in half of the conditions and was lower or higher in the other half. Results revealed successful priming, as participants believed in superior or inferior performance based on the narrative despite using the opposite refresh rate. Post-experiment questionnaires confirmed participants still held onto the initial narrative. Interestingly, the objective performance remained unchanged between both refresh rates. We discuss how study narratives influence subjective measures and suggest strategies to mitigate placebo effects in user-centered study designs. |
| title | The Illusion of Performance: The Effect of Phantom Display Refresh Rates on User Expectations and Reaction Times |
| topic | Human-Computer Interaction |
| url | https://arxiv.org/abs/2401.17706 |