Integration of Certainty,Severity, and Celerity Information in Judged Deterrence Value: urther Evidence and Methodological Equivalence1

The purposes of these studies were (a) to establish on a general basis whether 3 time-honored manipulable components of punishment combine additively, or multi-plicatively in determining the judged deterrence value of a sanction, and (b) to explore the equivalence in principle of two mutually exclusive experimental designs. Study 1 used a repeated measures design whereas main and interactive effects of certainty and severity were substantial and appeared to follow a multiplying rule, celerity effects were very small and local. Studies 2a and 3 used independent groups and established that the results of Study 1 were not merely an arbitrary product of the method. The discussion addresses the minimal effects of celerity, the interaction between certainty and severity, and the theoretical implications of choice of method.     

Quantum Mechanical Unbounded Operators and Constructive Mathematics – a Rejoinder to Bridges

As argued in Hellman (1993), the theorem of Pour-El and Richards (1983) can be seen by the classicist as limiting constructivist efforts to recover the mathematics for quantum mechanics. Although Bridges (1995) may be right that the constructivist would work with a different definition of closed operator, this does not affect my point that neither the classical unbounded operators standardly recognized in quantum mechanics nor their restrictions to constructive arguments are recognizable as objects by the constructivist. Constructive substitutes that may still be possible necessarily involve additional incompleteness in the mathematical representation of quantum phenomena. Concerning a second line of reasoning in Hellman (1993), its import is that constructivist practice is consistent with a liberal stance but not with a radical, verificationist philosophical position. Whether such a position is actually espoused by certain leading constructivists, they are invited to clarify.     

Solving the eyewitness problem

Faulty eyewitness testimony is a major source of wrongful convictions. Four solutions are examined to safeguard against mistaken testimony having undue impact: (1) to overturn any conviction based solely on the uncorroborated testimony of a single eyewitness, (2) to require that an attorney be present at any pretrial identification procedure, (3) to allow an expert to testify during the trial about factors of perception and memory that could affect a witness's accuracy, and (4) to have the judge deliver a cautionary instruction to the jury, admonishing them to carefully scrutinize eyewitness testimony, or to educate them about such testimony. Each alternative is discussed within the context of psychological research and legal cases.     

CULTURE,COUNTING AND NUMBER CONSERVATION

Children from 3 remote village populations in Papua New Guinea were administered notational counting and number conservation tasks. The results replicate previous research conducted in the United States that shows children develop the use of counting to mediate the comparison and reproduction of sets prior to understanding number conservation. The significance of these findings is discussed with respect to current models of number development.     

Leading questions and the eyewitness report

A total of 490 subjects, in four experiments, saw films of complex, fast-moving events, such as automobile accidents or classroom disruptions. The purpose of these experiments was to investigate how the wording of questions asked immediately after an event may influence responses to questions asked considerably later. It is shown that when the initial question contains either true presuppositions (e.g., it postulates the existence of an object that did exist in the scene) or false presuppositions (e.g., postulates the existence of an object that did not exist), the likelihood is increased that subjects will later report having seen the presupposed object. The results suggest that questions asked immediately after an event can introduce new—not necessarily correct—information, which is then added to the memorial representation of the event, thereby causing its reconstruction or alteration.     

Orientation effects on contour interaction in the Zöllner illusion

The magnitude of the Zöllner illusion was measured as a joint function of the angle of intersection between inducing and test contours and the orientation of the complete display. The intersect angle at which judgmental error was maximal varied as the display was rotated from 0 to 90 deg. An explanation of the Zöllner illusion in terms of selective adaptation of neural orientation specific detectors accounts for the interactive effects of display orientation and intersect angle if it is assumed that different orientation detectors have different tuning characteristics.     

Teaching young children how to use a computer-based Teletype as a “desk calculator”

The first stage in the research reported here was to teach students the mechanics of how to use a computer-based Teletype as a “desk calculator” in the solution of arithmetic problems. In the second stage, we examined a specific use for the desk-calculator program: we presented a series of word problems to the students and analyzed the solutions of these problems to determine the variables related to problem difficulty.