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Erwan Normand
2024-11-04 14:36:51 +01:00
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3-perception/vhar-textures/3-results.tex
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@@ -135,10 +135,12 @@ This shows that the participants consistently identified the roughness of each v
\label{results_questions}
\figref{results_questions} presents the questionnaire results of the \level{Matching} and \level{Ranking} tasks.
A non-parametric \ANOVA on an \ART model was used on the \response{Difficulty} and \response{Realism} question results, while the other question results were analyzed using Wilcoxon signed-rank tests.
A non-parametric \ANOVA on \ART models were used for the \response{Difficulty} and \response{Realism} question results.
The other question results were analyzed using Wilcoxon signed-rank tests, with Holm-Bonferroni adjustment.
On \response{Difficulty}, there were statistically significant effects of \factor{Task} (\anova{1}{57}{13}, \pinf{0.001}) and of \response{Modality} (\anova{1}{57}{8}, \p{0.007}), but no interaction effect \factor{Task} \x \factor{Modality} (\anova{1}{57}{2}, \ns).
On \response{Difficulty}, there were statistically significant effects of \factor{Task} (\anova{1}{57}{13}, \pinf{0.001}) and of \factor{Modality} (\anova{1}{57}{8}, \p{0.007}), but no interaction effect. % \factor{Task} \x \factor{Modality} (\anova{1}{57}{2}, \ns).
The \level{Ranking} task was found easier (\mean{2.9}, \sd{1.2}) than the \level{Matching} task (\mean{3.9}, \sd{1.5}), and the Haptic textures were found easier to discriminate (\mean{3.0}, \sd{1.3}) than the Visual ones (\mean{3.8}, \sd{1.5}).
Both haptic and visual textures were judged moderately realistic for both tasks (\mean{4.2}, \sd{1.3}), with no statistically significant effect of \factor{Task}, \factor{Modality} or their interaction on \response{Realism}.
No statistically significant effects of \factor{Task} on \response{Textures Match} and \response{Uncomfort} were found either.
The coherence of the texture pairs was considered moderate (\mean{4.6}, \sd{1.2}) and the haptic device was not felt uncomfortable (\mean{2.4}, \sd{1.4}).