title: Preliminary evaluation of a two-interval, two-alternative infant behavioral testing procedure.
abstract: The purpose of this study was to evaluate the feasibility and efficiency of an observer-based, two-interval forced-choice infant psychophysical testing procedure. Ten of 11 infants (7-9 months of age) achieved a criterion of 80%-correct detection of a 50-dB sound pressure level noise band in a single testing session. Fewer trials were needed to reach criterion using the two-interval procedure than previously reported for the single-interval observer-based psychophysical procedure [Olsho, Koch, Halpin, and Carter (1987). Devel. Psychol. 23, 627-640]. These results provide preliminary evidence that the two-interval procedure is feasible and efficient while controlling for observer and listener response bias.
authors.affiliation: Department of Allied Health Sciences, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 jenna_browning@med.unc.edu.
authors.forename: Jenna
authors.initials: J
authors.lastname: Browning
authors.affiliation: Department of Otolaryngology/Head and Neck Surgery, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 ebuss@med.unc.edu.
authors.forename: Emily
authors.initials: E
authors.lastname: Buss
authors.affiliation: Department of Allied Health Sciences, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 leibold@med.unc.edu.
authors.forename: Lori J
authors.initials: LJ
authors.lastname: Leibold
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods*; D001307:Auditory Perception; D002755:Choice Behavior; D005240:Feasibility Studies; D006801:Humans; D007223:Infant; D018730:Infant Behavior; D015588:Observer Variation; D011312:Pressure; D011571:Psychoacoustics; D015203:Reproducibility of Results; D013016:Sound