Describes a process model for sentence verification, including sentences expressing the implications of their antecedents. The model's distinctive features are the assumption that verification is based upon a focal element in the test sentence, and the comparison of this element with information corresponding to it in the antecedent…

A multidimensionality-based differential item functioning (DIF) analysis paradigm is presented that unifies substantive and statistical DIF analysis approaches by linking both to a theoretically sound and mathematically rigorous multidimensional DIF conceptualization. This approach results in the potential for DIF analysis more closely integrated…

How to measure growth in knowledge and ability over time in curriculum research is explored. Two broad classes of probabilistic models are considered, the Rasch model and latent class models with their associated generalizations. Potential of both classes for measuring categorical change is discussed. (SLD)

This study examined the dynamics of cognitive abilities and academic achievement from childhood to early adulthood. Predictions about time-dependent "coupling" relations between cognition and achievement based on R. B. Cattell's (1971, 1987) investment hypothesis were evaluated using linear dynamic models applied to longitudinal data (N=672).…

The objectives of nonprofit managers are not immediately apparent. Indeed, nonprofits may seek to maximize their level of service or their budgets, or they may have undefined or unstable objectives. This paper presents a theoretical model of managerial objectives that yields testable hypotheses, which I test using 2001 data on 190,000 American…

In the speech production model proposed by [Levelt, W. J. M., Roelofs, A., Meyer, A. S. (1999). A theory of lexical access in speech production. "Behavioral and Brain Sciences," 22, pp. 1-75.], syllables play a crucial role at the interface of phonological and phonetic encoding. At this interface, abstract phonological syllables are translated…

This study examined the hypothesis of superior quantification abilities of persons with high functioning autism (HFA). Fourteen HFA individuals (mean age: 15 years) individually matched with 14 typically developing (TD) participants (gender, chronological age, full-scale IQ) were asked to quantify as accurately and quickly as possible…

Faces are perceived holistically, a phenomenon best illustrated when the processing of a face feature is affected by the other features. Here, the authors tested the hypothesis that the holistic perception of a face mainly relies on its low spatial frequencies. Holistic face perception was tested in two classical paradigms: the whole-part…

A. W. Inhoff, R. Radach, and B. Eiter (see EJ750907) argue that the current version of the E-Z Reader model (A. Pollatsek, E. D. Reichle, & K. Rayner, see EJ750906) cannot explain 2 key findings in their data, and as a result, the assumption of words being attended to 1 at a time is likely to be false. In this rejoinder, the authors argue that…

We illustrate a class of multidimensional item response theory models in which the items are allowed to have different discriminating power and the latent traits are represented through a vector having a discrete distribution. We also show how the hypothesis of unidimensionality may be tested against a specific bidimensional alternative by using a…

Time-series data from 1960-1998 is used to test hypotheses regarding the impact of protest and public opinion on the passage of U.S. environmental legislation. An amplification model of policy impact is introduced which posits that protest affects legislative action independent of public opinion as suggested by protest event theorists, whereas the…

A new method for evaluating model fit that is easy to use and interpret is presented. The new method, which uses a binomial test of the number of hypotheses (paths) in a model that are supported by the data, has heuristic value when considering problems associated with other goodness-of-fit measures. An application of the binomial test as a…

As useful as LISREL may be in model estimation and testing, its most significant contribution to date is the encouragement and example it gives for right thinking about research and right planning of research. The encouragement to hypothesize the best possible model for the process that is the object of study, and to plan measurements that…

An approach to the analysis of an aptitude-treatment-interaction (ATI) design in which the treatment groups are based on an underlying factorial structure is described and illustrated. The approach emphasizes description with point and interval estimation. The example design considered consisted of two nominal treatment variables and one interval…

Modern reading theories that are concerned with the reading process of either mature or immature readers show no clearcut concern with unit size. The various graphic units that are encountered by the reader include letters, graphemes, clusters (such as blends), syllables, phonograms, affixes and roots, words, phrases, sentences, paragraphs,…