Columbia Group Project
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Transcript of Columbia Group Project
Predicting Personal Characteristics Based
on Perception of Voice
By: Hannah Chu, Alice Samaia, Greta Schatz, Cassie Stevens
Voice as external attribute that affects interpersonal behavior (i.e. persuasion and establishing relationship)
Telephone interview study→ Results demonstrated that features of voice significantly correlated with personal features
(Oguchi & Kikuchi, 2002)
Background
Analyze how people make assumptions about physical appearance and personality traits from certain voice characteristics
Hypothesesa. Subjects would be confident about their
accuracy in answering questions about physical appearance and personality traits based on voice characteristics
b. Subjects will be more likely to find the same sex voice more appealing.
Motivation/Hypotheses
Independent Variable:
ParticipantsTwo Female Voices
Two Male Voices
Dependent Variable:
Accuracy of SubjectsRating of Personality
Participants:
● 42 Students● 9 Male● 33 Female
Image: http://www.accuratect.com/images/masthead_participation.jpg
ProcedureQuestionnaires with physical and personality
characteristics were given to participants. Participants were asked to listen to four
voices, 2 female and 2 male.Participants answered multiple choice
questions for physical traits.Participants rated personality traits on a scale
of 1-6.Participants lastly rated how accurate they
believed they were for each voice.
Measures“Accuracy” was based on the amount of
correct answers for physical traits.“Confidence” was an average scaled to a 1:42
ratio in order for us to give a meaningful comparison to accuracy.
“Personality” was measured by averaging the ratings of the participants.
“Pitch” was determined by comparing the four voices and rating the highness or lowness of each voice relative to the other voices.
Image: http://www.clipartbest.com/cliparts/9i4/EdX/9i4EdX4iE.png
● Accuracy tended to be higher for relatively lower voices
●Confidence level didn’t change
100% of the subjects perceived voice four as being younger than the reality.
Voice four was considerably higher than voice two, which may account for the sizeable inaccuracies in interpretations.
Discussion on Non-Graphed Data
Personality Attributions“The personality assessments are made with a short version (10 items) of the Big Five Inventory (BFI), one of the most common personality assessment tools. The results show that traits attributed by human judges can be predicted with an accuracy ranging from 65% to 80%.”
(Mohammadi, Vinciarelli, & Mortillaro, 2010)
LimitationsAn unbalanced number of males to femalesSubjects did not always answer the entire survey
Instructions were sometimes ignoredFemale voices did not have a wide variation in pitch
Subjects sometimes did not put in the effort to circle individual numbers, circling entire columns
Subjects were influenced by each other
ConclusionSubjects were not as confident as anticipated
Unexpected patterns within the data, especially in the age and gender category were found
This indicates further studies can be done to investigate associations between physical characteristics and voice traits
Improvements and Further Studies
Same number of males to females in sample
Larger pitch range of voice recordingsNarrowed down goal (focus on one question)Focus on age attributions
Focus on gender differences
Voice pitch and its relation to attractiveness
Mohammadi, G., Vinciarelli, A., & Mortillaro, M. (2010). The Voice ofPersonality: Mapping Nonverbal Vocal Behavior into Trait
Attributions. Proceedings of the International Workshop on Social Signal Processing, 34, 17-20.
Oguchi, T., & Kikuchi, H. (2002). Voice and Interpersonal Attraction. Japanese Psychological Research, 39(1), 56-61.
References
Thank You!Any Questions?