CASPER: A personal computer package for exploring psychometrics

CASPER is a psychometrics software package suitable for instructional and research applications with IBM-PC-compatible computers. CASPER lets the user simulate or directly enter psychometric data. Numerous statistical analyses, file handling procedures, and graphics are included Analyses include factor analysis, multiple regression, correlation/partial correlation, moments analysis, reliability analysis, and item analysis.     

The computer revolution and the problem of global ethics

The author agrees with James Moor that computer technology, because it is ‘logically malleable’, is bringing about a genuine social revolution. Moor compares the computer revolution to the ‘industrial revolution’ of the late 18th and the 19th centuries; but it is argued here that a better comparison is with the ‘printing press revolution’ that occurred two centuries before that. Just as the major ethical theories of Bentham and Kant were developed in response to the printing press revolution, so a new ethical theory is likely to emerge from computer ethics in response to the computer revolution. The newly emerging field of information ethics, therefore, is much more important than even its founders and advocates believe.     

Statistics as psychometrics

In this paper, modern statistics is considered as a branch of psychometrics and the question of how the central problems of statistics can be resolved using psychometric methods is investigated. Theories and methods developed in the fields of test theory, scaling, and factor analysis are related to the principle problems of modern statistical theory and method. Topics surveyed include assessment of probabilities, assessment of utilities, assessment of exchangeability, preposterior analysis, adversary analysis, multiple comparisons, the selection of predictor variables, and full-rank ANOVA. Reference is made to some literature from the field of cognitive psychology to indicate some of the difficulties encountered in probability and utility assessment. Some methods for resolving these difficulties using the Computer-Assisted Data Analysis (CADA) Monitor are described, as is some recent experimental work on utility assessment.1980 Psychometric Society presidential address.I am indebted to Paul Slovic and David Libby for valuable consultation on the issues discussed in this paper and to Nancy Turner and Laura Novick for assistance in preparation.Research reported herein was supported under contract number N00014-77-C-0428 from the Office of Naval Research to The University of Iowa, Melvin R. Novick, principal investigator. Opinions expressed herein reflect those of the author and not those of sponsoring agencies.     

Inductive reasoning in psychometrics: A philosophical corrective

A brief historical overview of inductive logic is presented, and the logic of enumerative induction is discussed in its two generalized forms: rule-derivative and event-predictive. The psychometric tradition and experimental studies in induction are briefly recapitulated to indicate that they have not included event-predictive induction, that probabilities have not been prevalently included in rule-generative induction, and that the linguistic medium might be utilized more fully in the inductive area. An experimental test model designed in order to address these considerations is discussed. This test model of event-predictive induction in the linguistic medium was administered to a large sample of college graduates. Statistical characteristics of the tests and items were very satisfactory when compared to operational subtests. The theoretical significance of the study for future psychometric and experimental investigations in induction is discussed.     

DSM-IV: empirical guidelines from psychometrics

This commentary addresses the use of psychometric theory and methodology in the development of the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV). Reliability issues include interdiagnostician reliability, temporally consistent diagnoses, and the relations of diagnostic criteria within categories. Validity issues include content validity of the diagnostic criteria, criterion-related validity (the relation between different criterion sets or their algorithms and alternative diagnostic criteria), and construct validity (the relation between diagnostic categories and external validators). Specific questions and methodology to investigate its utility vary with the different uses proposed for the diagnostic system. Specific psychometric methodologies that may be useful in developing the DSM-IV are noted, as are the limitations of psychometrics and their applicability to DSM-IV.     

The curiosity and exploration inventory-II: Development, factor structure, and psychometrics

Given curiosity’s fundamental role in motivation, learning, and well-being, we sought to refine the measurement of trait curiosity with an improved version of the Curiosity and Exploration Inventory (CEI; [Kashdan, T. B., Rose, P., & Fincham, F. D. (2004). Curiosity and exploration: Facilitating positive subjective experiences and personal growth opportunities. Journal of Personality Assessment, 82, 291–305]). A preliminary pool of 36 items was administered to 311 undergraduate students, who also completed measures of emotion, emotion regulation, personality, and well-being. Factor analyses indicated a two-factor model—motivation to seek out knowledge and new experiences (Stretching; five items) and a willingness to embrace the novel, uncertain, and unpredictable nature of everyday life (Embracing; five items). In two additional samples (ns = 150 and 119), we cross-validated this factor structure and provided initial evidence for construct validity. This includes positive correlations with personal growth, openness to experience, autonomy, purpose in life, self-acceptance, psychological flexibility, positive affect, and positive social relations, among others. Applying item response theory (IRT) to these samples (n = 578), we showed that the items have good discrimination and a desirable breadth of difficulty. The item information functions and test information function were centered near zero, indicating that the scale assesses the mid-range of the latent curiosity trait most reliably. The findings thus far provide good evidence for the psychometric properties of the 10-item CEI-II.     

Econometrics and psychometrics: A survey of communalities

Several themes which are common to both econometrics and psychometrics are surveyed. The themes are illustrated by reference to permanent income hypotheses, simultaneous equation models, adaptive expectations and partial adjustment schemes, and by reference to test score theory, factor analysis, and time-series models.     

The concept of evolution and revolution

We hypothesize that there exist certain similarities between the strategies adopted by a biological organism, an individual or a social group, when faced by an aggressor. These strategies consist in either minimizing the aggression or else combating it immediately, in order to preserve, in the short term, the identity of the system under attack. One of the strategies commonly adopted for this purpose is retrocession, permitting the biological, neurobiological organism, or the social individual or group to elude certain environmental elements and return to a situation in which other escape routes may be taken.

In the long term, preservation of the external identity is accomplished by modification of the internal identity. Man uses in vivo or, after “extrusion,” ex vivo immunizing and cognitive functions to cope with the environment. He is thus able to create, ex vivo, therapeutic techniques by manipulating internal identity. In order to accomplish this, a profound knowledge is needed, at the level of each individual, of the functional mechanisms of biological and neurobiological identities.

Though social and biological sciences are progressing, they have great difficulties in finding the common language necessary to communicate productively. Analogies between these two domains, that we shall attempt to illustrate, may contribute to facilitating such communication.     

The Bayesian revolution approaches psychological development

This commentary reviews five articles that apply Bayesian ideas to psychological development, some with psychology experiments, some with computational modeling, and some with both experiments and modeling. The reviewed work extends the current Bayesian revolution into tasks often studied in children, such as causal learning and word learning, and provides evidence that children's performance can be optimal in a Bayesian sense. There remains much to be done in terms of understanding how representations are created, how development occurs, how Bayesian computation might be neurally implemented, and in reconciling the new work with older evidence that even skilled adults are incompetent Bayesians.