The extant picture-learning research does not address confusing word pairs that are not concrete (e.g., in and into). In this study, university students viewed 11 timed Web pages containing information on confusing word pairs. Each page addressed one word pair and distinguished the words with examples (example group), examples and rules (rule…

The person-response function (PRF) relates the probability of an individual's correct answer to the difficulty of items measuring the same latent trait. Local deviations of the observed PRF from the expected PRF indicate person misfit. We discuss two new approaches to investigate person fit. The first approach uses kernel smoothing to estimate…

This paper presents a generally applicable method for characterizing subjects' hypothesis-testing behaviour based on a synthesis that extends on previous work. Beginning with a transcript of subjects' speech and videotape of their actions, a Reasoning Map is created that depicts the flow of their hypotheses, tests, predictions, results, and…

Since the 1993 APA task force of the Society of Clinical Psychology developed guidelines to apply data-based psychology to the identification of effective psychotherapy, there has been an increasing number of texts focussing on Empirically based Psychotherapy and Empirically Supported Treatments. This manuscript examines recent key texts and…

The purpose of the present study was to test the hypothesis that student's abductive reasoning skills play an important role in the generation of hypotheses on pendulum motion tasks. To test the hypothesis, a hypothesis-generating test on pendulum motion, and a prior-belief test about pendulum motion were developed and administered to a sample of…

We assessed six multilingual subjects by functional MRI using a Noun Verb Generation task in four different languages. We hypothesised that the degree of proficiency in each language would be related to the extent of functional activity measured in a region of interest analysis. Proficiency in each language was quantified using two…

Two alternative hypotheses can be used to explain how young children acquire the cardinal meaning of small-number words. The first stresses the role of counting and predicts better performance when the items are presented in succession. The second considers the role of subitizing and predicts better performance when the items are presented…

This research explored the absolute accuracy of judgments of learning (JOLs), wherein absolute accuracy pertains to how well the magnitude of the participant's predictions of recall correspond to his or her subsequent recall. The Anchoring Hypothesis proposes that the magnitude of JOLs does not change systematically with item difficulty; analogous…

For science teachers, implementing inquiry for the first time can seem intimidating. Inquiry-based curriculum requires teachers to design experiences that engage students in scientific phenomena through direct observation, data gathering, and analysis of evidence. Replacing familiar routines and conventional methods with inquiry may seem outside…

The purpose of this study was to investigate how retrospective verbal reports can contribute to our understanding of the factors influencing the interlanguage development of tense and grammatical aspect. The goal was to gain insights into (1) the mental representations second language learners hold of tense and grammatical aspect, and (2) the…

According to the aspect hypothesis (Andersen & Shirai, 1996; Bardovi-Harlig, 2000), perfective morphology emerges before imperfective morphology, it is first used in telic predicates (achievements and accomplishments) and it later extends to atelic predicates (activities and states). The opposite development is hypothesized for imperfective…

It was hypothesized that stuttering may be related to impaired sensory gating, leading to overflow of superfluous disturbing auditory feedback and breakdown of the speech sequence. This hypothesis was tested using the "acoustic startle prepulse inhibition" (PPI) paradigm. A group of 22 adults with developmental stuttering were compared…

Troubleshooting in a practice situation requires two types of information, namely for reasoning about the problem-cause and for finding an adequate solution ("declarative information") and for manipulating the environment ("procedural information"). It is hypothesized that presenting this information piece-by-piece during practice (i.e.,…

In this paper, we summarize some of our findings from a series of three meta-analyses and discuss their implications for autism research. In the first meta-analysis, we examined studies addressing the theory of mind hypothesis in autism. This analysis revealed that theory of mind disabilities are not unique to autism, although what may be unique…

Interest regarding neural information processing in autism is growing because atypical perceptual abilities are a characteristic feature of persons with autism. Central to our review is how characteristic perceptual abilities, referred to as "perceptual signatures," can be used to suggest a neural etiology that is specific to autism. We review…