A randomized controlled trial of a home-visiting intervention aimed at preventing relationship problems in depressed mothers and their infants

This study examined the effect of a mother–baby intervention on the quality of mother–child interaction, infant–mother attachment security, and infant socioemotional functioning in a group of depressed mothers with infants aged 1–12 months. A randomized controlled trial compared an experimental group ( n = 35) receiving the intervention (8–10 home visits) with a control group ( n = 36) receiving parenting support by telephone. There were assessments pre, post, and follow-up after 6 months. The intervention had positive effects on the quality of mother–infant interaction. Infants in the experimental group had higher scores for attachment security and for one aspect of socioemotional functioning, namely, competence. The intervention proved successful in preventing deterioration of the quality of mother–child interaction.     

Untangling the effects of shared book reading: Multiple factors and their associations with preschool literacy outcomes

Evidence strongly suggests that shared book reading at home and in preschool is important for young children's development of the foundational skills required for the eventual mastery of decoding and comprehension. Yet the nuances of how learning from book reading might vary across these contexts and with children's skills are not well understood. One hundred and thirty children participating in a longitudinal investigation of literacy development were videotaped reading a storybook with a parent. Children were also videotaped in their 33 preschool classrooms during the instructional book-reading portion of the day. Readings were coded for adult and child contextualized and decontextualized language relating to both decoding and meaning-making skills, and relations between this talk and emergent literacy outcomes were analyzed. Results demonstrate that parents and teachers overwhelmingly focus their book-related talk on meaning-related rather than code-related information, and that the relations between outcomes and talk depend in part on children's initial levels of vocabulary skills. Implications for practice and research are discussed.     

Hurdle-jump responding in the rat as a function of conspecific odor of reward and nonreward

A hurdle-jump escape response was employed to assess the laboratory rat’s aversion or attraction to different types of conspecific odor. Odorant donor subjects received 112 runway acquisition trials on a continuous reward schedule followed by 32 extinction trials, 112 acquisition trials on a 50% schedule of reward and nonreward followed by 32 extinction trials, or 144 “neutral” trials with no reward in the alley. Different groups of test subjects escaped from odor excreted by odorant subjects on (a) nonrewarded acquisition and extinction trials, (b) rewarded trials during continuous reinforcement, (c) rewarded trials during partial reinforcement, or (d) neutral trials; others escaped from a clean box. The principal findings were: (1) significant aversion to “odor of nonreward” appeared after the donor odorants had received 12 exposures to reward; (2) production of odor of nonreward by odorant subjects changed as a function of training experience with reward; (3) after repeated exposure to odor of nonreward, the escape response habituated; (4) greater or different odor excretion in extinction resulted from subjects trained on a continuous reward schedule than on a partial reward schedule. Relationships of the data to frustration theory were discussed, assuming that inferred differences in production of odor reflect differences in frustration reaction.     

Schedule-induced polydipsia contrast in the rat

Schedule-induced polydipsia was studied using a behavioral contrast paradigm. Food pellets were delivered to food-deprived rats on a response-independent FT 1-min schedule. Licking on a tube produced water on a MULT FR 10 FR 10, MULT FR 10 EXT, or MIXED FR 10 EXT for three rats (Experiment 1) and on a MULT VI VI, MULT VI EXT, or MIXED VI EXT schedule for three other rats (Experiment 2). On the FR schedules, rats could drink more water by increasing lick rates, but on the VI schedules the amount of drinking was fixed by the schedule parameters and was relatively unaffected by lick rates. Relative to MULT FR FR, positive polydipsia contrast was clearly demonstrated on MULT and MIXED FR EXT; but relative to MULT VI VI, contrast was not demonstrated on MULT and MIXED VI EXT. These data suggest that polydipsia contrast occurs only if increased licking permits increased drinking.     

A distributed system of educational administration: An international viewpoint

Any educational service is provided through a large number of separated institutions and many decisions are necessarily taken by individual schools, and, indeed, by individual teachers. However, these day-to-day decisions are taken within a framework laid down elsewhere. Power and responsibility in an educational system relate chiefly to the extent and nature of the resources provided, the curriculum and teaching methods, the character and purpose of individual institutions and the internal organization of those institutions. Significant decisions may be taken at national, state, local authority and individual school levels. Cutting across such patterns are employer-employee relationships and agreements negotiated with trade unions. The system of governance and administration of schools in England is seen as a triangle of tension, the three points being central government, local government and individual schools. Reference is made to patterns of curriculum, examinations, supervision and finance, the English approach being compared with practices elsewhere. It is argued that within the constraints imposed by the controlling authority individual schools shouls possess a great deal of flexibility in making their own decisions, including questions of student-staff ratios, allocation of teachers and expenditure of finance. Power and responsibility should not be divorced, but related; this is the logical development of a system of distributed administration.

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Zusammenfassung Jedes Bildungssystem besteht aus einer grossen Zahl separater Institutionen, und viele Entscheidungen müssen von den einzelnen Schulen und sogar den einzelnen Lehrern selbst getroffen werden. Der Rahmen für diese täglich notwendigen Entscheidungen wird jedoch an anderer Stelle festgelegt. Entscheidungsbefugnis und Verantwortung in einem Bildungssystem beziehen sich in der Hauptsache auf den Umfang und die Art der verfügbaren Mittel, auf Curricula und Lehrmethoden, den Charakter und Zweck der einzelnen Institutionen und ihre interne Organisation. Wichtige Entscheidungen können auf Staats-, Landes-, Bezirks- und Einzelschul-Ebene gefällt werden. Über diesen gazen Aufbau hinweg gehen Arbeitgeber-Arbeitnehmer-Beziehungen und Vereinbarungen mit Gewerkschaften. Das Leitungsund Verwaltungssystem für Schulen in England wird als ein Spannungsdreieck dargestellt, dessen drei Ecken die Zentralregierung, die örtlichen Behörden und die Schulen selbst bilden. Verschiedene englische Muster von Lehrplänen, Examen, Aufsich und Finanzen werden aufgezeigt und mit denen anderer Länder verglichen. Dabei wird betont, dass die einzelnen Schulen innerhalb der von der zuständigen Behörde gesetzten Grenzen ein grosses Mass von Entscheidungsfreiheit besitzen sollten, auch in Fragen wie Klassenstärke, Einsatz von Lehrern und Verwendung der Finanzmittel. Machtbefugnis und Verantwortung sollten nicht getrennt, sondern miteinander verbunden sein. Das ist die logische Entwicklung eines Systems aufgeteilter Verwaltung.

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Résumé Tout service d'éducation est doté d'un grand nombre d'institutions distinctes, et, de ce fait, de nombreuses décisions sont prises individuellement par chacune des écoles, aussi bien que par chacun des enseignants. Quoiqu'il en soit, ces décisions prises au jour le jour, le sont dans les limites d'un cadre venant d'ailleurs. Dans un système d'éducation, pouvoir et responsabilité sont surtout liés à l'étendue et à la nature des ressources disponibles, du programme et des méthodes d'enseignement, du caractère et des objectifs de chaque institution, ainsi que de l'organisation interne de ces institutions. Les décisions importantes puevent être prises au niveau des autorités nationales, régionales ou locales, aussi bien qu'à celui de chacun des établissements scolaires. Les relations employeurs-employés, de même que les accords négociés avec les syndicats sont taillés sur le même modèle. En Angleterre, le système de gestion et d'administration des écoles apparait comme un triangle de tension dont les trois sommets sont constitués par le gouvernement central, le gouvernement local et les établissements scolaires eux-mêmes. Il est fait référence à d'autres modèles de programmes, d'examens, de contrôle et de finances, le système anglais étant comparé à ce qui ce fait ailleurs. Il est exposé que dans le cadre des contraintes imposées par l'autorité de contrôle, chaque école devrait posséder une grande marge de flexibilité pour prendre ses propres décisions, comprenant les questions des rapports d'associations d'élèves, les affectations des enseignants et les dépenses financières. Pouvoir et responsabilité ne devraient pas être séparés mais associés, tel est l'évolution logique d'une administration scolaire fonctionnant suivant un système de répartition.