We performed three experiments to improve the quality and retention of data obtained from a Procedure for Rapidly Establishing Steady-State Behavior (PRESS-B; Klapes et al., 2020). In Experiment 1, 120 participants worked on nine concurrent random-interval random-interval (conc RI RI) schedules and were assigned to four conditions of varying changeover delay (COD) length. The 0.5-s COD condition group exhibited the fewest instances of exclusive reinforcer acquisition. Importantly, this group did not differ in generalized matching law (GML) fit quality from the other groups. In Experiment 2, 60 participants worked on nine conc RI RI schedules with a wider range of scheduled reinforcement rate ratios than was used in Experiment 1. Participants showed dramatic reductions in exclusive reinforcer acquisition. Experiment 3 entailed a replication of Experiment 2 wherein blackout periods were implemented between the schedule presentations and each schedule remained in operation until at least one reinforcer was acquired on each alternative. GML fit quality was slightly more consistent in Experiment 3 than in the previous experiments. Thus, these results suggest that future PRESS-B studies should implement a shorter COD, a wider and richer scheduled reinforcement rate ratio range, and brief blackouts between schedule presentations for optimal data quality and retention. 相似文献
A robust body of research examines factors affecting the likelihood that women experience increasing barriers to promotion in workplaces. However, limited research examines how racialized and gendered processes may intersect and work differently for racially and gender marginalized workers. Specifically, the processes relating to a worker’s ability to reach middle-level management positions (e.g., those managers who oversee a small group of employees) and senior-level management positions (e.g., CEOs and other executive positions) may vary based on workers’ race and gender. Using 2015 EEO-1 data collected by the U.S. Equal Opportunity Employment Commission (EEOC), we examine how the characteristics of a workplace affect Black men, Black women, White men, and White women’s share of middle- and senior-level management. We find Black women and Black men are strikingly under-represented in both middle and senior management in private-sector workplaces. Our results demonstrate that access to middle- and senior-management varies by the characteristics of the workplace and workers’ race and gender. Overall, our findings point to an important implication: Greater oversight of workplaces, including by the EEOC, is associated with marginalized race/gender groups having higher shares of management.
Fathers' face-to-face interactions with their 4-month-old high-risk infants were compared to mothers' interactions with the same infants and to those interactions of fathers and mothers of normal infants. The high-risk infants were less attentive and less affectively responsive than normal infants, and their mothers were more active. Fathers of both high-risk and normal infants engaged in more game playing and laughed more frequently than mothers during interactions. Although the behaviors of the normal and high-risk infants differed, as did the behaviors of mothers interacting with them, the fathers engaged in similar amounts of activity, smiling, laughing and playing games with normal and high-risk infants. Fathers may be less disturbed than mothers by their high-risk infants' lesser responsivity. 相似文献
Examples are given of research on (a) stressful procedures and assessments in the neonatal intensive care nursery and (b) natural caregiving stimulation and self-comforting behaviors that alleviate these stressful experiences. The data from the studies on stressful procedures and assessments revealed that (a) weaning from mechanical ventilation was associated with increased plasma cortisol levels; (b) heelsticks and tube insertions for gavage feedings were accompanied by decreases in oxygen tension (TcPO2); and (c) Brazelton neonatal behavior assessments were followed by increased cortisol levels and decreased growth hormone levels. To alleviate stress, various interventions were tried including caregiver comforting techniques and giving the neonates opportunities to comfort themselves by sucking on pacifiers. The caregiver intervention studies revealed that (a) a simple placement of hands on the head and abdomen of the NICU neonate resulted in a lesser need for oxygen and (b) massaging the NICU neonate resulted in greater weight gain and earlier discharge. In those studies that explored the infant's self-comforting, nonnutritive sucking behavior, the following results emerged: (a) sucking on pacifiers during heelsticks resulted in less crying and lower heart rate and respiration and (b) sucking on pacifiers during tube feedings resulted in smoother bottle feedings later and in greater weight gain. Thus, it appears that several forms of cost-effective interventions can alleviate these stressful procedures and facilitate infant growth and development. 相似文献
Forty-four depressed and non-depressed mothers participated in a videotaped interaction with their own infant and then rated the videotape using the Infant Stereotyping Scale and the Interaction Rating Scale. In addition, one half of the mothers rated a videotape of an unfamiliar infant who was labelled psychologically ‘depressed’ and the other half rated a videotape of the same infant with no label given. Both the depressed and non-depressed mothers rated the ‘depressed’ labelled infant more negatively than the non-labelled infant on the attributes of physical potency, cognitive competence, sociability and difficult behaviour. Physical appearance was the only rating that was not biased by the ‘depressed’ label. Mothers' ratings of their own infants were more positive than their ratings of the non-labelled stimulus infant. Depressed mothers did not see their infants more negatively except on one rating. They rated the physical appearance of their own infant more negatively than non-depressed mothers. 相似文献
To determine whether infants of “depressed” mothers interact better with their nondepressed fathers, twenty-six 3- to 6-month-old infants were videotaped during face-to-face interactions with their parents. The “depressed” mother group consisted of twelve 3- to 6-month-old infants and their “depressed” mothers and nondepressed fathers. The control group was composed of 14 nondepressed mothers and nondepressed fathers and their 3- to 6-month-old infants. In the “depressed” mother group, the nondepressed fathers received better interaction ratings than the “depressed” mothers. In turn, the infants received better interaction ratings when they interacted with their nondepressed fathers than with their “depressed” mothers. In contrast, nondepressed fathers and mothers and their infants in the control group did not differ on any of their interaction ratings. These findings suggest that infants' difficult interaction behaviors noted during interactions with their “depressed” mothers may not extend to their nondepressed fathers. The data are discussed with respect to the notion that nondepressed fathers may “buffer” the effects of maternal depression on infant interaction behavior. 相似文献
The purpose of the current study was to evaluate the effect of implementing differential reinforcement at different times relative to the onset of teaching new skills to learners with autism spectrum disorder. Specifically, we first determined the most efficient differential reinforcement arrangement for each participant. Using the most efficient arrangement, we evaluated if differential reinforcement from the immediate onset, early onset, or late onset is the most efficient for learners to acquire a new skill. Three children diagnosed with autism spectrum disorder who have a history of receiving intervention based on the principles of applied behavior analysis participated in this study. The immediate onset of differential reinforcement resulted in the most efficient instruction in 6 of 7 comparisons. The results are discussed in light of previous studies and suggestions for future research are provided. 相似文献