title: Reliability and validity of nonverbal thin slices in social interactions.
abstract: Four studies investigated the reliability and validity of thin slices of nonverbal behavior from social interactions including (a) how well individual slices of a given behavior predict other slices in the same interaction; (b) how well a slice of a given behavior represents the entirety of that behavior within an interaction; (c) how long a slice is necessary to sufficiently represent the entirety of a behavior within an interaction; (d) which slices best capture the entirety of behavior, across different behaviors; and (e) which behaviors (of six measured behaviors) are best captured by slices. Notable findings included strong reliability and validity for thin slices of gaze and nods, and that a 1.5-min slice from the start of an interaction may adequately represent some behaviors. Results provide useful information to researchers making decisions about slice measurement of behavior.
authors.affiliation: Loyola Marymount University, Los Angeles, CA, USA nora.murphy@lmu.edu.
authors.forename: Nora A
authors.initials: NA
authors.lastname: Murphy
authors.affiliation: Northeastern University, Boston, MA, USA.
authors.forename: Judith A
authors.initials: JA
authors.lastname: Hall
authors.affiliation: University of Lausanne, Switzerland.
authors.forename: Marianne
authors.initials: M
authors.lastname: Schmid Mast
authors.affiliation: Northeastern University, Boston, MA, USA.
authors.forename: Mollie A
authors.initials: MA
authors.lastname: Ruben
authors.affiliation: University of Lausanne, Switzerland.
authors.forename: Denise
authors.initials: D
authors.lastname: Frauendorfer
authors.affiliation: National Cancer Institute, Bethesda, MD, USA.
authors.forename: Danielle
authors.initials: D
authors.lastname: Blanch-Hartigan
authors.affiliation: Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
authors.forename: Debra L
authors.initials: DL
authors.lastname: Roter
authors.affiliation: Swiss Federal Institute of Technology in Lausanne (EPFL) and Idiap Research Institute, Lausanne, Switzerland.
authors.forename: Laurent
authors.initials: L
authors.lastname: Nguyen
mesh_terms: D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D009633:Nonverbal Communication; D015203:Reproducibility of Results; D012919:Social Behavior; D012938:Social Perception; D013997:Time Factors
keywords: coding; nonverbal behavior; reliability; thin slices; validity