Duty-to-warn guidelines for mental health counselors

There are few clear definitive guidelines for counselors to implement regarding duty-to-warn cases. In addition, ethical codes do not specifically address duty-to-warn issues. A tentative model to use as a guide in making clinical judgments in such cases is provided as well as case examples to exemplify possible ethical dilemmas in the practice of counseling.     

Risks and costs of a treatment litigation: Focus on the family

Decision-making in special educational settings is always based on an implicit process of assessing risks, costs, and benefits of proposed alternative program options. We urge decision-makers to make the process explicit. The hidden costs of IEP decisions are discussed in the context of the question of using aversive procedures to treat severe destructive behavior. Some agency decisions result in significant cost transfer to or generation of risks and costs for families. The experiences of one family involved in a due process proceeding with a school system are examined for evidence of burdensome psychological, social and financial consequences.     

Suppes Predicates for Space-Time

We formulate Suppes predicates for various kinds of space-time: classical Euclidean, Minkowski's, and that of General Relativity. Starting with topological properties, these continua are mathematically constructed with the help of a basic algebra of events; this algebra constitutes a kind of mereology, in the sense of Lesniewski. There are several alternative, possible constructions, depending, for instance, on the use of the common field of reals or of a non-Archimedian field (with infinitesimals). Our approach was inspired by the work of Whitehead (1919), though our philosophical stance is completely different from his. The structures obtained are idealized constructs underlying extant, physical space-time.     

Probability Distortions and Outcome Desirability: Experimental Verification of Medical Folklore1

A belief common among medical personnel is that in conveying diagnoses or prognoses to patients, it is always best to emphasize the positive. In order to see if emphasis on the positive does make a difference in one's expectation of the more desirable of two alternative outcomes actually occurring, this laboratory experiment was conducted. College students were led to believe they had a low, moderate, or high probability of being assigned to one of two tasks, which differed in desirability. For some students the instructions focused on the probability of being assigned to the desirable task, whereas for others the instructions focused on the probability of being assigned to the undesirable. The two probabilities were always complementary; that is, the probability of being assigned to the desirable task was equal to one minus the probability of being assigned to the undesirable task. Following an interpolated activity, each subject's expectation of being assigned to the desirable or undesirable task was measured. Across all probability levels, subjects for whom the instructions had focused on the probability of being assigned to the desirable task viewed that assignment as significantly more likely than did subjects for whom the instructions had focused on the complementary probability of being assigned to the undesirable task. The implications of this for communicating with patients, for preventive medicine, and for coping with serious illness are briefly discussed.     

Combining discrepant diagnostic information from multiple sources: Are complex algorithms better than simple ones?

Optimizing methods of combining discrepant diagnostic information from multiple sources is one of the more daunting tasks facing the field of child psychopathology. Several researchers have asserted that complex information-combining schemes, those in which certain information or sources of information are weighted differently from others, are preferable. This study provides theoretical and empirical evidence that simple information-combining schemes, those in which all information from all sources is weighted equally, will as a rule work as well as complex schemes and may even work better. The implications of these findings for diagnostic instrument and algorithm design are discussed. A two-step diagnostic procedure utilizing a simple information-combining scheme is presented.     

PROTECTIVE EQUIPMENT: CONTINUOUS AND CONTINGENT APPLICATION IN THE TREATMENT OF SELF-INJURIOUS BEHAVIOR

This study evaluated the use of protective equipment in treating self-injurious behavior (SIB) exhibited by three retarded persons. In Experiment 1, the equipment was first applied continuously during 20-min sessions in individual multiple baseline designs across settings. Results showed substantial reductions in head hitting, eye gouging, and hand biting. Brief periods of time-out with the protective equipment were later made contingent on SIB and combined with a differential reinforcement procedure. Reduced levels of SIB was maintained with all subjects. Additionally, the amount of time during which the equipment was applied decreased as the SIB diminished. Experiment 2 evaluated the use of contingent protective equipment (the final condition in Experiment 1) when applied directly in the subjects' living uints during the day. During Experiment 2, SIB remained at or below the levels found at the termination of Experiment 1. Finally, in an effort to assess the long-term effectiveness of the procedure, responsibility for implementation was given to the staff who were typically assigned to provide therapy to the subjects. Follow-up probe observations conducted up to 104 days after termination of the final experimental condition showed continued low levels of both SIB and equipment usage. Results of these experiments suggest that contingent protective equipment and differential reinforcement may be effective in reducing chronic self-injury.     

Discrimination of auditory target dimensions in the presence or absence of variation in a second dimension by infants

Discrimination of two acoustic dimensions of auditory stimuli, vowel identity and pitch contour, was tested with infants between the ages of 4 and 16 weeks using the high-amplitude sucking (HAS) technique. Discrimination of the vowel dimension and the pitch dimension was tested under two conditions: when a change in the target dimension occurred in theabsence of constant variation in a second dimension, and when a change in the target dimension occurred in thepresence of constant variation in a second dimension. In addition, discrimination was tested in a combined condition in which one level of the vowel dimension was always combined with one level of the pitch dimension and the stimulus change to be detected was a recombination of the levels of each dimension. Sucking-recovery scores demonstrated that infants always discriminated a change in the target dimension when it occurred without variation in the second dimension, regardless of the dimension that served as the target. However, while variation of the pitch dimension did not alter vowel discrimination, variation in the vowel dimension interfered with discrimination of the pitch dimension. Discrimination was also not evidenced in the combined condition. Analysis of the group time-to-habituation (TH) data revealed that significantly longer TH scores were correlated with a failure to demonstrate discrimination. The data are discussed in terms of the formation of auditory perceptual categories in early infancy as they relate to the acquisition of speech and language and, more generally, to developmental attention and memory for auditory stimuli.     

The Toronto Word Pool: Norms for imagery,concreteness, orthographic variables,and grammatical usage for 1,080 words

Imagery and concreteness norms and percentage noun usage were obtained on the 1,080 verbal items from the Toronto Word Pool. Imagery was defined as the rated ease with which a word aroused a mental image, and concreteness was defined in relation to level of abstraction. The degree to which a word was functionally a noun was estimated in a sentence generation task. The mean and standard deviation of the imagery and concreteness ratings for each item are reported together with letter and printed frequency counts for the words and indications of sex differences in the ratings. Additional data in the norms include a grammatical function code derived from dictionary definitions, a percent noun judgment, indexes of statistical approximation to English, and an orthographic neighbor ratio. Validity estimates for the imagery and concreteness ratings are derived from comparisons with scale values drawn from the Paivio, Yuille, and Madigan (1968) noun pool and the Toglia and Battig (1978) norms.