title: A device for recording automatic audio tape recording.
abstract: Adaptation of a commercially available timer for use as a means of operating an audio tape recorder several times during the day is described. Data on a mother's rates of commanding her children were collected via both physically present observer and recorder methods in order to compare the usefulness of the recordings with direct observation. There was a high positive relationship between observer-recorder command rates, with the observer rates being consistently higher, when data were collected via both methods simultaneously as well as at different points in time.
authors.affiliation: Ucla Neuropsychiatric Institute.
authors.forename: M E
authors.initials: ME
authors.lastname: Bernal
authors.forename: D M
authors.initials: DM
authors.lastname: Gibson
authors.forename: D E
authors.initials: DE
authors.lastname: Williams
authors.forename: D I
authors.initials: DI
authors.lastname: Pesses