Murine vocalizations: Experimental validation of a novel detector

A new device to detect vocalizations by mice or rats is described. Of modest cost and incorporating integrated circuits and controls that permit rapid setting of center frequency and sensitivity, the device is based on phase-locked tone decoding and can operate at sonic or ultrasonic frequencies. Circuit operation and schematics are provided, as are data from two studies of mice in which reliable discrimination of distress and submission calls from background noise was demonstrated.     

Difficulty and interpersonal attraction

Male subjects learned that they would have to perform an easy, moderately difficult, or very difficult memory task in order to qualify for a “learning session” in which they would be accompanied by a moderately attractive female. Subjective measures taken just prior to task performance indicate that subjects viewed the female target as more attractive, sexy, and cute in the Moderately Difficult task condition than in the Easy and Very Difficult task conditions. Results are discussed in terms of a recently proposed model of motivation (Brehm 1979; Brehm, Wright, Solomon, Silka, & Greenberg, 1983), and research on the relation between difficulty and interpersonal attraction.     

Dropping out of parent training

The purpose of the present study was to determine the dropout rate when parents are taught to modify their children's problem behavior. Eight journals were examined for parent-training studies. Forty-five studies were found but only 22 of these reported dropout data. Studies were examined for dropout rate and in order to determine if the point in therapy at which dropout occurred was specified. The overall dropout rate was 28% and most studies specified when the dropout occurred. Finally, variables that are critical to dropping out when parent training is undertaken are presented and recommendations are made for future research.     

The Daily Child Behavior Checklist

The purpose of this study was to develop a child behavior checklist that could be completed on a daily basis and that included both positive and negative child behaviors. Participants in the study were six groups of individuals, including one group of clinical psychology graduate students and five groups of either clinic-referred or nonclinic children and their parents. Content, discriminant, concurrent, and statistical conclusion validity data as well as test-retest reliability data were collected on the Daily Child Behavior Checklist (DCBC). The results indicated that the instrument has satisfactory validity and reliability and is reasonably sensitive to daily changes in child behaviors. The advantages and uses of the DCBC are discussed.     

Maternal satisfaction with clinic-referred children: Assessment by use of a single-subject methodology

Prior research has indicated that maternal perception of or satisfaction with their children may be predicted by factors other than the child's behavior. The present study was designed to examine this issue further by using a single-subject methodology, improving the assessment procedures utilized, and increasing the number of predictor variables. It was hypothesized that factors other than child behavior would contribute to maternal satisfaction with the child but that the particular factor would vary across mothers. Two clinic-referred children and their mothers served as subjects. Prior to, during, and after treatment, the mothers completed a daily series of questionnaires to assess satisfaction with her child, daily child behavior, maternal depression, the marital relationship, and physical health. The results indicated that maternal satisfaction and maternal report of child behavior changed with treatment. The hypothesis was confirmed as physical health for one mother and the marital relationship for the second mother combined with child behavior to predict maternal satisfaction. Correlational analyses suggested that the maternal satisfaction with the child is related more to the child's negative behavior than positive behavior. The implications of the findings and of the methodology which was employed are discussed.     

Time-out with children

The purpose of the present study was twofold: (a) to determine the effect of an explanation prior to or after time-out on child compliance and on child disruptive behavior during time-out and (b) to determine the effect of brief parent training in time-out on child and parent behaviors. Thirty-two mother—child pairs served as subjects and were assigned to one of the following four groups: control, time-out only, explanation prior to time-out, or explanation following time-out. Each mother—child pair was observed for one session under pretraining, training, and posttraining conditions. The results indicated that time-out significantly increased compliance but the addition of an explanation did not further alter the effectiveness of time-out. Training in the use of time-out decreased the incidence of maternal interruptions but did not affect maternal responses that were not trained. Finally, following brief time-out training for noncompliance, the mothers used the procedure only 50% of the time following noncompliance.This study was supported in part by a University of Georgia Research Council grant.     

Informational analysis of imitation: Further comments

An informational analysis of imitation as proposed by Liebert and Fernandez (1970a) is examined. Based on the Liebert and Fernandez data and statistical procedures, as well as inconsistent findings in other studies in the area, at least certain components of the informational heuristic would appear to have serious limitations. In particular, the proposal that both vicarious reward and punishment, relative to no vicarious consequences, will increase recall of the model's acts is questioned.     

The association between social withdrawal and internalizing problems of children

Children identified as low-frequency interactors or socially withdrawn were compared to outgoing children to evaluate whether socially withdrawn children display concurrent internalizing problems. From a sample of 640 children in grades 2-5, 48 children were identified by teachers as low-frequency interactors and 72 children were selected as outgoing or sociable. When these two groups were compared on a battery of teacher, peer, and self-report measures that assessed internalizing difficulties, the low-frequency interactors were found to display concurrent problems in adjustment. Children who rarely interacted with peers were less well liked by their peers, displayed poorer self-concepts, and were more depressed and anxious than sociable children. In contrast to these findings regarding internalizing problems, the two groups did not differ on measures of externalizing problems. The results lend support to the concurrent validity of the low-interaction method of identifying socially withdrawn children.     

Attitude change as a function of threat to attitudinal freedom and extent of agreement with a communicator

Subjects who previously expressed either partial or full agreement with an attitudinal position were exposed to a low- or high-threat essay advocating the position. Anonymous post-communication measures of opinion indicated a reactance effect (negative attitude change) only for subjects who (1) read the hrgh-threat essay, and (2) previously expressed complete agreement with the communicator. Theoretical implications are discussed.