Influence of hedonic tone on lexical decisions

A lexical decision task was used to investigate the effect of a word’s hedonic tone on decision time. Thirty words, varying in degrees of pleasantness, were randomly presented with 30 nonwords, half of which were pronounceable and half not. It was demonstrated that decision times for the pleasant words were significantly faster than for the unpleasant words. The two types of nonwords were also found to differ: Decision times for the pronounceable nonwords were significantly slower than for the nonpronounceables. Results are discussed in the light of previous work in both memory and perception. The utility of the lexical decision task for relevant future research is also considered. Part of the work reported in this paper was supported by North East London Polytechnic as partial fulfillment of the requirements for a higher degree (C.N.A.A.).     

Equal Opportunity Programs: A Case for Counseling

The Civil Rights Act of 1964, under Title VI, requires that institutions of higher education submit enrollment figures according to ethnic breakdown for federal monies to be allocated. Such requirements are indicative of efforts to diversify student populations. The Higher Education Act of 1965 also incorporates a number of related programs—Supplemental Opportunity Grants, College Work Study, Talent Search, Upward-Bound—which are designed to provide direct or indirect assistance to disadvantaged students. (Gordon, 1975)     

Perception and extrapolation of velocity and acceleration.

A moving target disappeared behind a screen and subjects predicted when the target passed behind a marker on the screen. When the target moved with constant velocity, predictions were extremely accurate, regardless of the spatial and temporal exposure and concealment of the target and regardless of its rate of velocity. When the target accelerated, accuracy of prediction decreased with increasing acceleration and with increasing target concealment. Analyses of the results suggest that the perception of velocity and acceleration is direct and accurate and that extrapolation of velocity and acceleration incorporates concrete and abstract characteristics of the motion that was seen. It is proposed that the motion perception system is tuned to accelerated rather than to constant velocity movement.     

The disadvantaged as a social and professional phenomenon

Being culturally disadvantaged is a social condition which is created, managed, and maintained by both social and professional institutions. When institutions attempt to sustain societal norms by selecting certain attributes and calling them desirable, these institutions are relegating large segments of the population to a deviant status if it does not share these attributes. The “culturally disadvantaged” are such a group. This phenomenon not only results in differential perceptions and expectations, but also influences their self-evaluation, academic success, and career opportunities. The transformation of deviance into incompetency has also led to formally sanctioned methods of managing deviancy. Methods, such as compensatory education, ability grouping, and special class placement can be viewed as maintaining the position that the culturally disadvantaged are indeed deviant and incompetent.     

Comparing item characteristic curves

Test items are often evaluated and compared by contrasting the shapes of their item characteristics curves (ICC's) or surfaces. The current paper develops and applies three general (i.e., nonparametric) comparisons of the shapes of two item characteristic surfaces: (i) proportional latent odds, (ii) uniform relative difficulty, and (iii) item sensitivity. Two items may be compared in these ways while making no assumption about the shapes of item characteristic surfaces for other items, and no assumption about the dimensionality of the latent variable. Also studied is a method for comparing the relative shapes of two item characteristic curves in two examinee populations.The author is grateful to Paul Holland, Robert Mislevy, Tue Tjur, Rebecca Zwick, the editor and reviewers for valuable comments on the subject of this paper, to Mari A. Pearlman for advice on the pairing of items in the examples, and to Dorothy Thayer for assistance with computing.     

Stimulus-response compatibility in the programming of speech

Subjects chose between sequences of one syllable (e.g.,/gi/vs./bi/), two syllables (e.g.,/gibi/ vs./gubu/), and three syllables (e.g.,/gibidi/ vs. gubudu/), when/i/sequences were signaled by high-pitched tones and/u] sequences were signaled by low-pitched tones (high compatibility), or the reverse (low compatibility). Choice times were additively affected by sequence length and compatibility. A second experiment showed attenuated compatibility effects for sequences with different vowels in the first and second syllables. These results replicate previously reported results for choices between finger sequences, which suggests that the same programming methods are used in both output domains. Evidently, choices between response sequences can be achieved by selecting a distinguishing parameter and assigning it in a serial fashion to partially prepared motor subprograms.