Using a lag schedule to increase variability of verbal responding in an individual with autism

Research has shown that reinforcing novel behaviors can increase the number of different ways that an individual behaves (Goetz & Baer, 1973; Pryor, Haag, & O'Reilly, 1969). However, it was not until more recently that researchers began to consider variability to be a reinforceable operant in and of itself (Neuringer, 2002). More specifically, Neuringer suggested that variability can be taught using a Lag x schedule of reinforcement, in which x refers to the number of previous responses from which the current response must differ in order for reinforcement to occur (Page & Neuringer, 1985). The purpose of the present study was to extend one of the first studies of a Lag x schedule on verbal responses with human subjects (Lee, McComas, & Jawor, 2002), by increasing the lag criteria while attempting to address some of methodological limitations of the study. The participant was a 7-year-old male with autism. A changing criterion design was used and results showed that 3 novel responses were acquired and varied according to the lag schedule of reinforcement.     

Increasing Vocal Variability in Children with Autism Using a Lag Schedule of Reinforcement

Variability has been demonstrated to be an operant dimension of behavior (Neuringer, 2002; Page & Neuringer, 1985). Recently, lag schedules have been used to demonstrate operant variability of verbal behavior in persons with a diagnosis of autism (e.g., Lee, McComas, & Jawor, 2002). The current study evaluated the effects of a Lag 1 schedule on the vocal variability of 2 nonverbal children with a diagnosis of autism. Results showed systematic increases in variability during the Lag 1 schedule. Implications of lag schedules for speech and language training are discussed.     

Using a Lag Reinforcement Schedule to Increase Phonemic Variability in Children With Autism Spectrum Disorders

Shaping functional vocal language is difficult when an individual has not yet acquired an echoic repertoire and does not emit sufficient phonemes (i.e., speech sounds) for shaping. Few studies have evaluated interventions to increase the frequency and breadth of phonemes. The current study extended Esch, Esch, and Love (2009) by evaluating the effects of a Lag 1 reinforcement schedule on vocal variability and limiting the definition of variability to responses that incorporated a novel phoneme. For 2 of the 3 participants, the cumulative number of novel phonemes, the percentage of trials with variability, and the number of different phonemes emitted per session increased during the Lag 1 intervention phase.     

Infants' discrimination of consonant contrasts in the presence and absence of talker variability

To learn speech-sound categories, infants must identify the acoustic dimensions that differentiate categories and selectively attend to them as opposed to irrelevant dimensions. Variability on irrelevant acoustic dimensions can aid formation of robust categories in infants through adults in tasks such as word learning (e.g., Rost and McMurray, 2009) or speech-sound learning (e.g., Lively et al., 1993). At the same time, variability sometimes overwhelms learners, interfering with learning and processing. Two prior studies (Kuhl & Miller, 1982; Jusczyk, Pisoni, & Mullennix, 1992) found that irrelevant variability sometimes impaired early sound discrimination. We asked whether variability would impair or facilitate discrimination for older infants, comparing 7.5-month-old infants' discrimination of an early acquired native contrast, /p/ vs. /b/ (in the word forms /pIm/ vs. /bIm/), in Experiment 1, with an acoustically subtle, non-native contrast, /n/ vs. /ŋ/ (in /nIm/ vs. /ŋIm/), in Experiment 2. Words were spoken by one or four talkers. Infants discriminated the native but not the non-native contrast, and there were no significant effects of talker condition. We discuss implications for theories of phonological learning and avenues for future research.     

Using a Lag Schedule of Reinforcement to Increase Response Variability in Children With Autism Spectrum Disorders

Lag reinforcement schedules have been shown in previous research to be an effective intervention for teaching verbal and nonverbal response variability to individuals with developmental disabilities. In more recent research, variability itself has been considered a reinforceable behavior in its own right (Susa & Schlinger, The Analysis of Verbal Behavior, 18, 125–130, 2012). Lag x schedules of reinforcement can be used to teach variability by using contingencies that require responses to differ from previous responses. The present study extended Susa and Schlinger’s, The Analysis of Verbal Behavior, 18, 125–130, (2012) research by using 3 social questions instead of 1 in a random rotation and included probes to test for generality. A changing-criterion design was used to evaluate the results with one 11-year-old female participant diagnosed with autism. During baseline, the participant provided little variability, with rote responses. During the Lag 1 and Lag 2 phases, appropriate variable verbal responding increased with the use of echoic prompts, visual aids, and an error correction procedure. Further, the results also showed that the participant learned to vary her responses by demonstrating the ability to emit 11 novel prompted responses and 13 spontaneous responses.In addition, the participant was able to retain the skills learned in a maintenance probe conducted 4 weeks postintervention.     

Demystifying the use of mail survey in developing countries: a case of Nepal

ABSTRACT

The mail survey is a popular data collection tool in developed countries, but little is known about its use and efficacy in developing countries. Grounded on social exchange and diffusion of innovations theories, this study sought to ascertain whether the mail survey works in Nepal – one of the developing countries, by looking at how long respondents take to respond to mail surveys, and what the determinants are of the response time. A mail survey was conducted in June–September 2012 among 863 village animal health workers. Analysis of the data derived from 500 usable surveys shows that if properly planned and executed, the mail survey will perfectly work in developing countries as well. However, response period greatly varied by respondent’s home region, program sponsor, income groups, but not by gender, age, and education. The paper concludes by outlining suggestions to improve the mail survey.     

Scale direction effects in agree/disagree and item-specific questions: a comparison of question formats

The effect of the response scale direction on response behavior is a well-known phenomenon in survey research. While there are several approaches to explaining how such response order effects occur, the literature reports mixed evidence. Furthermore, different question formats seem to vary in their susceptibility to these effects. We therefore investigate the occurrence of response order effects in Agree/Disagree (A/D) and Item-Specific (IS) questions. We conducted an experiment among n = 930 students in which we varied the scale direction (decremental vs. incremental) within A/D and IS questions and asked respondents to evaluate the questionnaires. The results reveal response order effects within the A/D but not within the IS question format. Furthermore, respondent’s evaluations suggest that completion of the IS questionnaires requires more consideration than the completion of the A/D questionnaires. Altogether, our findings indicate that IS questions are more robust against response order effects than A/D questions.     

Identities under construction: professional journalism in a phase of destabilization

Is journalism going through ‘de-professionalization’ or is it just entering a new phase – taking a different shape? And what is the meaning of professional ideals such as scrutiny and autonomy in these processes? My article aims at analysing those matters, focusing on the case of Swedish journalists. Empirical support is drawn from a national survey conducted four times since 1989 on the Department of Journalism and Mass Communication at Gothenburg University. Questions about journalists’ perceptions of various ideals offer excellent opportunities to explore possible homogenization vs. fragmentation, as well as what the attitudinal dimensions actually say about the professional content of Swedish journalism. The results are analysed by the conceptualization of Bourdieu's field theory, along with current professional theory, and point at a possible separation of professional levels: where a few ideals constitute an all-embracing umbrella of professional ideology, while the flora of attitudes below is more diverse and dependent on factors of organization, gender and age. The professional ideals may furthermore be regarded as a form of cultural capital, used as legitimizing tools in journalism's struggle for maintaining status quo. The main conclusion is that journalism is not de-professionalizing on an ideological level, but going through a re-formation. Traditional journalistic ideals have attained increasing support over time and the efforts to fix professional boundaries are fierce. This does not mean that the democratic functions of journalism should not be guarded: as the ideals start taking discursive shapes, they are also increasingly bound to clash with praxis.     

Email subject lines and response rates to invitations to participate in a web survey and a face-to-face interview: the sound of silence

This paper investigates the relationship between blank and non-blank email subject lines on levels of response to a solicitation to participate in an interview, and on participation in a web survey. Email use has grown substantially in recent years, presenting significant opportunity to the empiricist seeking research respondents. However, response to emails may be low because growth in the sheer volume of messages that individuals receive per day has led to a sense of ‘email overload’, and faced with the challenge of personal email management, many recipients choose to ignore some messages, or do not read them all fully. Drawing on information gap theory, we expected that sending an invitation with a blank subject line would induce a sense of curiosity in recipients that would improve email response and willingness to participate in research studies. However, findings from research with two samples with different propensities to participate in research (academics and business owners) revealed that an email invitation with a blank subject line does not increase overall response rates to a web survey and a face-to-face interview over either an informative subject line or a provocative subject line, but that it does prompt a greater number of active refusals. Based on this finding, recommendations for researchers are outlined.     

Women’s status and qualitative perceptions of a cash assistance programme in Raqqa Governorate,Syria

ABSTRACT

Cash and voucher assistance is an efficient way to deliver assistance in emergency settings, and evidence demonstrates that cash programmes have consistent positive impacts on food security and other health and economic outcomes in these contexts. Nevertheless, while evidence from development settings shows that cash has the potential to reduce intimate partner violence and increase empowerment for women and girls, there is a dearth of rigorous evidence from acute humanitarian settings. In response to this evidence gap, the International Rescue Committee conducted an evaluation of a cash programme in Raqqa Governorate, Syria. The aim was to examine the effect of a cash for basic needs programme on outcomes of violence against women, and women’s empowerment. This article draws on qualitative data from interviews with 40 women at the end of the cash programme. It offers evidence of potential increased tension and abuse within both the community and the household for some women whose families received cash, as well as potential increased social protection through repayment of debts and economic independence for others. Both negative and positive effects could be seen. While the objective of the cash programme was not to influence underlying power dynamics, this research shows it is necessary to integrate gender-sensitive approaches into programme design and monitoring to reduce risk to women of diverse identities.     

The prevalence and nature of abuse and neglect in children under four: a national survey

This paper reports the results from a Danish national survey of child abuse and neglect. Data were obtained by a written questionnaire sent to all home health visitors. All newborn Danish children receive visits by a home health visitor several times during their first year of life. For children in need of special care for social reasons the visits may continue until school age (at 6 or 7 years). The questionnaire included four checklists of signs of abuse and neglect. The home health visitors were asked to record what they had actually observed visiting the children in their homes. Eighty‐three per cent (covering about 80% of all newborns) answered the questionnaire. The objective was to establish a scientific based framework that could be used to guide preventive efforts. Ten per cent of all children under 1 year of age may be characterized as children in need of special care for social reasons, the most frequent single reason being reliance on social assistance, alcohol abuse or violence against the mother. A minimum of 4% of infants are subjected to broadly defined abuse or neglect from one or more of the four categories: physical abuse, physical neglect, emotional abuse and emotional neglect, physical and emotional neglect being the most frequent and physical maltreatment the most rare. Copyright © 1999 John Wiley & Sons, Ltd.     

Bringing the owners back in: An analysis of a 3-mode interlock network

This paper examines the association between ownership and director interlocks in Swedish big business during the period 1990–2005. By analyses of the 3-mode network of owners, firms, and directors, multiple director assignments are shown to be highly dependent on owner interlocks. The findings provide a new understanding of the mechanisms behind the formation of director interlocks. Furthermore, the association between the interlock types suggests that the ownership network may potentially (co-)produce some of the phenomena that have been attributed to the director network. Future analyses of director interlocks have to bring the owners back in.     

Legitimating journalistic authority under the state's shadow: a case study of the Environmental Press Awards in China

This study investigated the legitimation of journalistic authority in the form of journalism awards. The Environmental Press Awards, an unofficial but highly regarded news competition among Chinese environmental reporters, was selected as a case study. The case was examined from three interconnected dimensions: the creation and maintenance of moral and pragmatic legitimacies; the strategic processes of cognitive and social legitimation; and a dual process of symbolic legitimation of the market media ideology. Research conclusions were formed based on statistical analysis of 181 award submissions and 10 in-depth interviews with key personnel in the host organizations, the journalism community, and environmental non-governmental organizations. By looking into the establishment, dynamics, and results of the awarding process, the alliance between the market media and the green civil society was seen to have created and buttressed the legitimacy of the award. Without the blessing from the party-state, such legitimacy is vulnerable but can also be enabling.     

Severity and determinants of stunting in children under age 2 years in Odisha (India): a tribal v/s non-tribal analysis

Prevalence of stunting among India’s tribal under-five children has witnessed a 3% annual decline in the last 8 years. Cross-sectional data of 1000 children (287 tribal and 713 non-tribal) aged 0–23 months from Odisha’s Rapid Survey of Children (RSOC, 2014) was analysed to identify the predictors of stunting and severe stunting among tribal children and to suggest policy and programme implications. Results show significant determinants of childhood stunting to be birth order, maternal illiteracy and determinants for severe stunting were maternal age <18 years at marriage and <20 years at birth, and <3 antenatal clinic visits. Severe stunting in tribal children was predicted by basic causes: poverty and maternal age <20 years at first birth and age <18 years at marriage. Findings strongly suggest to accelerate efforts towards reducing childhood stunting in Odisha more specifically among tribal children for whom a special strategy is urgently warranted.     

Family farmers and major retail chains in the Brazilian organic sector: Assessing new development pathways. A case study in a peri-urban district of São Paulo

The expansion of the organic sector in Brazil is seen as a leverage for the social emancipation of the small family farmers. Next to the traditional alternatives circuits of organic food and farming, new powerful capitalistic actors, such as supermarket chains, are rapidly entering the Brazilian organic arena. Can family farming benefit from the development of these “conventional” commercialisation circuits in the organic sector? Research undertaken in 2007, in a green belt rural community of São Paulo, shows how family farmers may have benefited from the implication of large retail chains in the organic sector and how an economically and ecologically outstanding agriculture may arise from these circumstances. However, we highlight the crucial role played by social regulation: only strong solidarity between farmers and the implication of technicians, militants and researchers in the process made it possible to counter the negative effects of the liberal logic governing the development of organic farming via the major retailers. Still, as tougher competition is expected on the regional organic market, the development of short supply chains involving “committed” consumers and the broader integration of the local farmers in networks of organic militancy appear crucial. It would guarantee a continuous enhancement of the local human and social capital, reinforce an emerging process of internal conversion and allow for a stronger social regulation of the future local development pattern.