Interocular transfer in pigeons of color discrimination but not motor response training

Adult pigeons with one eye covered were trained to peck a response key using grain as a reinforcer. In subsequent tests, with the trained eye covered and the control eye open, the birds failed to peck the key. The subjects were then divided into two groups for a second experiment. The first group was trained on a single-key, peck/no-peck color discrimination task with the original control eye covered. When tested for interocular transfer of discrimination performance, these birds failed to respond at all. They were then trained to peck a blank response key with the training eye covered and the control eye open. Control-eye tests after this motor response training resulted in excellent transfer of color discrimination performance. The second group of subjects was trained to peck a blank key with first one eye covered and then the other, before monocular discrimination training was begun. These birds showed excellent transfer of discrimination performance during control-eye tests. These results show that, at least in the operant paradigm, motor response training does not transfer interocularly and this lack of transfer may interfere with transfer of discrimination performance.     

Physical abuse during adolescence: Gender differences in the adolescents' perceptions of family functioning and parenting

OBJECTIVE: To examine the relationship between physical abuse of adolescents and parenting by mothers and fathers and whether the association differs by gender. METHODS: Subjects were adolescents, 51 girls and 45 boys, documented by Child Protective Services (CPS) as physically abused during adolescence. Comparison subjects were non-abused adolescents, 47 girls and 48 boys, from the same suburban communities. Subjects completed the following: Family Adaptability and Cohesion Evaluation Scale, Parental Bonding Instrument, modified Conflict Tactics Scale (assessing physical abuse/punishment by each parent). RESULTS: Although CPS generally cited fathers as the abuse perpetrators, abused boys and girls often reported experiencing physical maltreatment from both parents. Not surprisingly, comparison subjects rated parents more positively than abused subjects. For both groups, mothers were perceived as more caring and less controlling, were reported to have closer relationships with their adolescents, and were less likely to use abuse/harsh punishment than were fathers. Differences between the adolescents' perceptions of mothers and fathers were more pronounced for abused than for comparison subjects. Boys' and girls' perceptions of parenting were generally similar except that girls, especially the abused girls, reported feeling less close to fathers. Abused girls also viewed mothers as less caring than the other groups viewed mothers. Abused girls were also less likely than abused boys to perceive that either parent, but particularly fathers, had provided them with an optimum style of parenting. CONCLUSIONS: Adolescents who experienced relatively mild physical abuse reported dysfunctional family relationships, which may place them at risk of poor adult outcomes. Adolescents' reports suggest that CPS reports may underestimate physical maltreatment by mothers.     

Formative and shared assessment in higher education. Lessons learned and challenges for the future

Formative assessment is the process by which teachers provide information to students during the learning process to modify their understanding and self-regulation. An important process within this is shared assessment, which refers to student involvement in the assessment and learning practice, a process of dialogue and collaboration between teacher and students aimed at improving the learning process, both individually and collectively. The purpose of this paper is to review the current state of affairs in depth. This paper therefore highlights, on the one hand, the lessons learned through research and development in higher education (i.e. providing clear learning goals and feedback, guiding learning, involving students in learning and assessment, promoting feedback as a process of dialogue, and making processes viable). On the other hand, these lessons also suggest some challenges and difficulties that must be addressed in the future in order to further improve formative and shared assessment in higher education. These include the need for more research on its effects, further conceptual clarification, the intersubjectivity of the process, recognition of the divergent processes and ethical principles, students’ involvement not only in assessment but also in determining academic grades, and broading learning goals and objetives in FA & SA.     

University students' assessment of the explanatory content of justification statements

A test was devised involving familiar chemical examples and administered to samples of Portuguese university chemistry students in order to establish to what extent they recognised and correctly assessed the explanatory content of statements presented in the form of justifications, usually beginning with the word ‘because’. It was found that a high percentage of the students selected as the ‘best explanations’ statements that either involved tautology or simply invoked a rule, principle or general observation. Also, low‐level interpretations and correlations between facts and/or variables (or mathematical concepts) were also frequently taken as valid explanations; more surprising, however, was the finding that a significant proportion of statements involving high level interpretation in terms of fundamental concepts were rated as providing the least intellectual satisfaction.