Quick,incidental word learning in educational media: all contexts are not equal

Educational technology research and development - Classic studies of educational media have demonstrated that children can engage in quick, incidental word learning on the basis of a single...     

埃迪·兰恩的父亲

Mr Lane, Eddie Lane's Dad, came out the door of the betting shop at the end of Davis Road. With long, slow steps he walked across Davis Road, across the car     

Preference for 50% reinforcement over 75% reinforcement by pigeons

When pigeons are given a choice between an initial-link alternative that results in either a terminal-link stimulus correlated with 100% reinforcement or a stimulus correlated with 0% reinforcement (overall 50% reinforcement) and another initial-link alternative that always results in a terminal-link stimulus correlated with 100% reinforcement, some pigeons show a preference for the initial-link alternative correlated with 50% reinforcement. Using this procedure, in Experiment 1, we found a relatively modest preference for 100% over 50% reinforcement. In Experiment 2, we decreased the reinforcement density for the second initial-link alternative to 75% and found a significant preference for the 50% reinforcement initial-link alternative. It may be that this “maladaptive” behavior results from a positive contrast between the expectation of reinforcement correlated with the 50% reinforcement initial-link alternative and the terminal-link stimulus correlated with 100% reinforcement. But apparently, the complementary negative contrast does not develop between the expectation of reinforcement correlated with the 50% reinforcement initial-link alternative and the terminal-link stimulus correlated with 0% reinforcement that often follow. Such paradoxical choice may account for certain human appetitive risk-taking behavior (e.g., gambling) as well.     

STRATEGIES TO EXPAND A PENPAL PROGRAM FROM SIMPLE LETTERS INTO A FULL INTERGENERATIONAL EXPERIENCE

The Senior Pen Pal Program offered in the first grade classroom at Mulready Elementary School in Hudson, MAis an example of a successful intergenerational program. The program has evolved from a letter exchange to include the assignment of books about senior citizens, regular correspondence, and structured group visits between participants. Some of the seniors visit the classroom and lead activities. The senior center is visited by the students and an intergenerational concert is held during the holidays.     

Relations among reading skills and sub-skills and text-level reading proficiency in developing readers

Despite the recent attention to text reading fluency, few studies have studied the construct of oral reading rate and accuracy in connected text in a model that simultaneously examines many of the important variables in a multi-leveled fashion with young readers. Using Structural Equation Modeling, this study examined the measurement and structural relations of the rate and accuracy of variables important in early reading: phonemic blending, letter sounds, phonograms, decoding, single-word reading, reading comprehension, and text reading as well as reading comprehension among second grade readers. The effects from phonemic blending fluency and letter sound fluency to decoding were completely mediated by phonogram fluency, decoding fluency, single-word reading fluency, and reading comprehension had direct effects on the text reading fluency of the second grade students. Understanding the relationship among the many component skills of readers early in their reading development is important because a deficiency in any of the component skills has the potential to affect the development of other skills and, ultimately, the development of the child as a proficient reader.