Programmed presentation of pure tones of different frequencies using a single oscillator

A simple and inexpensive method is described for the programmed presentation of pure tones of different frequencies using a single oscillator.     

The users of an online psychological advice service: a sociodemographic analysis

Although online psychological services and research based on them are increasing rapidly, it is not that easy to find investigations that focus on the kind of people that demand them. To know their profile could help to improve the online psychological services that are offered to them. For this purpose, we analysed the sociodemographic characteristics of 1052 participants, all of them having posed a psychological question to our online advice service. The relations between sociodemographics and variables related to the psychological consultation are analysed herein. Features such as age distribution, a high proportion of long-term problems, the large quantity of questions from Latin America, or the under representation of the lowest socioeconomic and educational levels could lead to clinical, social and legal implications that we comment on in this work.     

Science as Public Reason: A Restatement

According to John Rawls, the methods and conclusions of science—when these are non-controversial—constitute public reasons. However, several objections have been raised against this view. This paper focuses on two objections. On the one hand, the associational objection states that scientific reasons are the reasons of the scientific community, and thus paradigmatically non-public in the Rawlsian sense. On the other hand, the controversiality objection states that the non-controversiality requirement rules out their public character when scientific postulates are resisted by a significant portion of the citizenry. The paper replies that both objections miss their mark. To the associational objection, it replies that the relevant test for a reason to be public is whether the reasons have been construed under the rules and constrains of a public frame of thought. Insofar as scientific methods and conclusions correspond to the principles of reasoning and rules of evidence that liberals understand as public, their associational origin is secondary. To the controversiality objection, it replies that the standard for a scientific argument to be regarded as non-controversial should refer to its degree of intra-scientific consensus, since ordinary citizens accept or reject scientific pronouncements conditioned to their particular comprehensive views. Nonetheless, a wide extra-scientific agreement on the epistemic virtues of the scientific method will be needed. The paper concludes that there is a good case to think about scientific reasons as public to the extent that scientific reasoning is a mode of inquiry that mirrors a central aspiration of Rawlsian political liberalism: having a public way of thought and an impersonal standpoint to adjudicate between competing claims.     

From Corpora to Experiments: Methodological Triangulation in the Study of Word Order at the Interfaces in Adult Late Bilinguals (L2 learners)

This paper shows the need to triangulate different approaches in Bilingualism and Second Language Acquisition (SLA) research to fully understand late bilinguals’ interlanguage grammars. Methodologically, we show how experimental and corpus data can be (and should be) triangulated by reporting on a corpus study (Lozano and Mendikoetxea in Biling Lang Cognit 13(4):475–497, 2010) and a new follow-up offline experiment investigating Subject–Verb inversion (Subject–Verb/Verb–Subject order) in L1 Spanish–L2 English (n = 417). Theoretically, we follow a recent line in psycholinguistic approaches to Bilingualism and SLA research (Interface Hypothesis, Sorace in Linguist Approaches Biling 1(1):1–33, 2011). It focuses on the interface between syntax and language-external modules of the mind/brain (syntax-discourse [end-focus principle] and syntax-phonology [end-weight principle]) as well as a language-internal interface (lexicon-syntax [unaccusative hypothesis]). We argue that it is precisely this multi-faceted interface approach (corpus and experimental data, core syntax and the interfaces, representational and processing models) that provides a deeper understanding of (i) the factors that favour inversion in L2 acquisition in particular and (ii) interlanguage grammars in general.     

The Development of Anaphora Resolution at the Syntax-Discourse Interface: Pronominal Subjects in Greek Learners of Spanish

This study explores the development of anaphora resolution (AR) in late sequential bilinguals, namely, adult Greek learners of Spanish at three proficiency levels (intermediate, lower advanced, upper advanced). The use of an overt/null pronominal subject anaphor is investigated in three discourse contexts: topic-continuity (a single antecedent requiring a null pronoun), contrastive-focus (two same-gender potential antecedents requiring an overt pronoun to avoid ambiguity) and emphatic (three same-gender potential antecedents showing unclear preference for either overt or null pronoun). Crucially, AR behaves similarly in Greek and Spanish. Results from an offline contextualised acceptability judgement task show that similarity between the learner’s first (L1) and second (L2) languages does not necessarily facilitate the learning task. Even very advanced learners show deficits, which are selective since not all discursive contexts are equally affected. The results are better accounted for by general pragmatic economy principles: Learners prefer being redundant (overuse of overt pronouns in topic-continuity contexts) to ambiguous (acceptance of null pronouns in contrastive-focus contexts). Such tolerance for redundancy may reflect a more general pragmatic tendency, as also reported in child L1 development, adult L2 development and also in native grammars.     

Psychometric examination of the School Social Climate Questionnaire in Chileans students

The School Social Climate Questionnaire (CECSCE) was adapted and applied. Subsequently, its psychometric proprieties were analyzed. The 1075 Chilean students who participated were assessed with the CECSCE and the School Violence Scale. The results showed that the CECSCE has a bifactorial structure, although there was also the possibility of a unifactorial structure. The CECSCE achieved satisfactory reliability and homogeneity indexes. The CECSCES scores were inversely related to the school violence rate. Lastly, differences by gender and educational level were analyzed. Given that there are differences in school climate perceptions in favor of girls, Chilean standards are presented in percentiles by gender. It can therefore be concluded that the CECSCE is sufficiently valid and reliable to be applied in Chile.     

TEACHING YOUNG CHILDREN TO USE CONTACT LENSES

Young children with surgically removed lenses and extreme nearsightedness can benefit from contact lenses, but their parents may need instruction to teach their children to accept lenses. In this study, 4 children under the age of 5 years were taught contact lens wear using a shaping procedure. Compliance was rewarded with praise and tangibles, and noncompliance was followed with brief time-out for 3 of the children and restraint for the 4th. Three children showed high compliance during an initial shaping procedure, with a decrease in compliance during initial insertion of the lenses. At 3- to 10-month follow-up, levels of compliance were high. Insertion and removal of lenses were accomplished in substantially less time, with little crying and no need for time-out. All 3 children continue to use the lenses daily, and 2 have shown improved visual acuity. The 4th child, who has Down syndrome, showed low levels of compliance with need for physical restraint throughout. Although his parents reported high compliance when he first went home, fitting difficulties and an infection resulted in plummeting of compliance, and contact lens use was discontinued. This procedure has been used successfully at the same hospital with 11 of 13 other children between the ages of 14 months and 7 years 4 months. Implications for selection of suitable candidates for this intervention and ways to decrease costs are discussed.     

Equivalence classes formation applied to learning musical notes

Three experiments involving training and application of equivalence classes were carried out. In the first of them, with 6-6 years old children, and applying the equivalence classes logic to musical symbols and sounds learning, the necessary relations to build three equivalence classes (do, mi, sol) of five members each were acquired. In second and third experiments, five and seven equivalence classes (musical notes) of five member each were obtained. Six and a half years old children and one 17 years old Down syndrome diagnosed child took part in them, respectively. Results highlight the theoretical meaning of equivalence classes as explanation of human symbolic behavior, as the educational incomes of improving learning of basic elements in artistic skills.     

“I definitely feel like a scientist”: Exploring science identity trajectories among Latinx students in a critical race theory-informed undergraduate research experience

The current study investigated science identity development among Latinx university students selected for a critical race theory (CRT)-informed undergraduate research experience. Twenty students (12 female, 8 male; M_age = 22.00; SD = 2.77) enrolled in biomedical-related majors at a 4-year university responded to open-ended questions regarding their identity as scientists at 2 weeks, 6 months, and 18 months after they began the program. Results illustrated a steady increase in the number of students identifying as scientists over 18 months. At 2 weeks into the program, only 35% of Latinx students felt like a scientist. At 6 months, 45% of Latinx students identified as a scientist. At 18 months, 70% of Latinx students reported feeling like a scientist. Results also revealed variation in science identity trajectories, with four trajectories viewed in the data: (1) consistent or fast achievement, (2) gradual achievement, (3) achievement adjustment, and (4) never reach achievement. The majority of students demonstrated a trajectory in which they reached science identity achievement (the feeling that they are “a scientist”). Our results provide evidence of the positive, longitudinal impact that a CRT-informed curriculum has on the science identity development of Latinx students. Implications surrounding future research and strategies to facilitate long-term Latinx student participation in the biomedical sciences are discussed.