Six series of experiments (11 individual experiments involving over 150 subjects) were conducted to further extend automatic/controlled processing research to command and control mission-specific training. The issues examined in these experiments were related to retention of task-component skills of amount of practice, component training for…

This research investigated developmental shifts in the character of children's tool using activity in the domain of scale drawing. Fifty-five children from three grade levels (grades 3, 5, and 7) were individually interviewed as they participated in both enlarging and reducing a one-dimensional object, the letter "F," to a scale of four.…

A two-level regression model is imposed on the ability parameters in an item response theory (IRT) model. The advantage of using latent rather than observed scores as dependent variables of a multilevel model is that this offers the possibility of separating the influence of item difficulty and ability level and modeling response variation and…

This study investigated the effect of writing task topic on learner performance in a second-language writing test, in this case the Michigan English Language Assessment Battery designed to test proficiency in English as a Second Language. The 64 topics or "prompts" used in the test (offered as pairs of options) were categorized according…

The notion of literature's difficulty must have begun with its first interpreter. Biblical readings sometimes allegorized scripture into moral precept, while occult readings (i.e., Gnostic writings) often carried an implication that such texts are either for an elite readership or represent the essence of a tradition of spiritual truth under…

Groups of individuals classified as "constricted" and "non constricted" according to three personality scores - anger expression, independence, and anomie - were contrasted on civil liberties attitude dimensions. It was found that "constricted" individuals do not have a simpler conceptual structure for those attitudes…

The difficulty of understanding embedded sentences is discussed in relation to Bever's hypothesis: if a sentence segment has a double function by means of the same processing strategy it is difficult to interpret the sentence. An alternative to this theory is proposed due to the author's experiments. (SCC)

Presents two experiments which investigated whether there is a shift with age in the relative speed and difficulty of same versus different judgments. Subjects included preschoolers, third graders, and college students. (SDH)

In the Spring 2003 issue of "Harvard Educational Review," Roy Freedle stated that the SAT® is both culturally and statistically biased, and he proposed a solution to ameliorate this bias. His claims, which garnered national attention, were based on serious errors in his analysis. We begin our analyses by assessing the psychometric…

It is a widely held belief that anchor tests should be miniature versions (i.e., minitests), with respect to content and statistical characteristics of the tests being equated. This paper examines the foundations for this belief. It examines the requirement of statistical representativeness of anchor tests that are content representative. The…

The study examined the relationship between language and mathematics with 11 classes of deaf students taking Algebra 1 or Algebra 2 at the Gallaudet University School of Preparatory Studies. Specifically, the study attempted to predict the difficulty of a variety of relatively simple algebra problems based on the abstractness of the math and the…

A joint maximum likelihood estimation algorithm, based on the partial compensatory multidimensional logistic model (PCML) proposed by L. Zeng (1989), is presented. The algorithm simultaneously estimates item difficulty parameters, the strength of each dimension, and individuals' abilities on each of the dimensions involved in arriving at a correct…