A CONVERSATION WITH COLIN CHERRY

Born in 1914, Colin Cherry received his B.Sc. in engineering with First Class Honors in 1936. During the Second World War, he worked with the British Ministry of Aircraft Production on radar research and flying trials. In 1945 he joined the staff of the Manchester College of Technology for two years before moving to Imperial College of Science and Technology, University of London. He was awarded the D.Sc. in engineering in 1956, and in 1968 received his present appointment as Henry Mark Pease Professor of Telecommunication at Imperial College. Colin Cherry has travelled widely, and lectured in more than 20 countries. He has published more than 100 papers in journals of engineering, psychology, linguistics, and other fields. In addition to his cornerstone work On Human Communication (John Wiley, 1957; MIT Press, 1966), Cherry has published several other books, including World Communication: Threat or Promise (John Wiley, 1971), and is currently at work on a third edition of On Human Communication to be published by MIT Press.     

AN EMPIRICAL TEST OF A ROLE ENACTMENT MODEL OF PERSUASION

Prior research into self-persuasive effects has produced empirical propositions that address the communication process only in a very general way. While psychological formulations are helpful in generating constructs and propositions dealing with intrasource effects as a function of counterattitudinal advocacy, the generalizability of these findings appears limited. Berger's role enactment model of persuasion provides constructs and propositions that comport more exactly with practical communicative experiences. The present study tested the relationships obtaining among concepts crucial to the model. Results confirmed the prediction that role aptitude and task-relevant information were positively related to attitude change. The relationship among the role aptitude, information, and post-performance evaluation variables was not confirmed. The results and refinements of the model were discussed in terms of the potential the model has for more precise tests of communication effects. Message complexity, varying information levels, and other variables were discussed as amenable to tests employing the role enactment model. While self-persuasion situations offer an appropriate paradigm in which to test general social psychology theories, there is some doubt as to the contribution such research can make to our understanding of communication. It is a question of “social significance.” Do sources frequently speak against their “true” attitudes? If so, do intra-source effects tell us much about communication between people? In short, can practical gains be achieved in counterattitudinal advocacy research? We believe that many of the processes associated with self-persuasion are similar to those which characterize interpersonal communication. These similarities are most obvious when one approaches communication research in the context of role theory. (1972, 260)     

AN EMPIRICAL TEST OF A MODEL OF RESISTANCE TO PERSUASION

This investigation synthesized research from several related areas to produce a model of resistance to persuasion based upon variables not considered by earlier congruity and inoculation models. Support was found for the prediction that the kind of critical response set induced and the target of the criticism are mediators of resistance to persuasion. The more critical acts are focused on arguments presented in a persuasive message, the more likely that the critical act will not be distracting and therefore promote counterarguing which will lead people to be resistant to subsequent persuasive messages arguing on the same side of given attitudinal issue. When criticism is less central to message variables and focuses on speaker and/or delivery characteristics, distraction occurs which decreases the probability of counterarguing and induces people to be vulnerable to forthcoming persuasive messages. This is especially true when negative criticism of speaker characteristics reduces threat to present attitudes and reduces motivation to counterargue to protect privately held beliefs. A completely counterbalanced design employing several manipulation checks was created to rule out competing explanations for differential resistance to persuasion.     

AN EMPIRICAL TEST OF A TRAIT-ORIENTED JOB ANALYSIS TECHNIQUE

A trait-oriented job analysis technique based on a checklist of 33 a priori carefully defined traits that encompass elements of the physical, mental, learned, motivational and social domains of the work world is described. The analysis identifies the relevant traits, their levels and weights, in relation to overall job performance. Results of discriminability tests were supportive of the job analysis technique and indicated that incumbents of jobs requiring a particular trait scored higher on measures (predictors) of that trait than incumbents of jobs not requiring that trait. Implications of the results for personnel selection and placement are discussed.     

ON ANSWERING QUESTIONS INDIRECTLY: SOME RULES IN THE GRAMMAR OF DOING CONVERSATION1

The mechanisms through which an indirect response to a question counts as a direct answer to that question can fruitfully be regarded as a process in which the listener supplies, constructs, infers, or is reminded of such statements as will (together with the indirect response itself) allow the inference of a plausible direct answer. This analysis presents seven rules of conversational interpretation, and likens conversational logic to the enthymeme. It also supports a widely asserted characteristic of conversation in general: that participants expect each other to cooperate in making utterances “make sense.”     

EMPIRICAL TEST OF A MODEL RELATING MAGNITUDE AND CATEGORY SCALES

E isler , H. Empirical test of a model relating magnitude and category scales. Scand. J. Psychol ., 1962, 3 , 88–96.—The function K =α log( φ+ q/k) +β seems to describe the relation between category scale values K and subjective magnitudes φ. The additive constant q/k is obtained from the S ds of the magnitude estimates.
The model was empirically confirmed for the loudness and softness of white noise scaled by the methods of magnitude estimation and category rating.     

WORK ENGAGEMENT: A QUANTITATIVE REVIEW AND TEST OF ITS RELATIONS WITH TASK AND CONTEXTUAL PERFORMANCE

Many researchers have concerns about work engagement's distinction from other constructs and its theoretical merit. The goals of this study were to identify an agreed‐upon definition of engagement, to investigate its uniqueness, and to clarify its nomological network of constructs. Using a conceptual framework based on Macey and Schneider (2008; Industrial and Organizational Psychology, 1, 3–30), we found that engagement exhibits discriminant validity from, and criterion related validity over, job attitudes. We also found that engagement is related to several key antecedents and consequences. Finally, we used meta‐analytic path modeling to test the role of engagement as a mediator of the relation between distal antecedents and job performance, finding support for our conceptual framework. In sum, our results suggest that work engagement is a useful construct that deserves further attention.     

A WITHIN SETTING EMPIRICAL TEST OF THE SITUATIONAL SPECIFICITY HYPOTHESIS IN PERSONNEL SELECTION

The situational specificity hypothesis of selection procedure validity makes two predictions. The first is that variation in observed validities across settings is caused by real differences in what constitutes job performance. Validity generalization studies to date have provided disconfirming evidence for this prediction by showing that the observed variation is due to statistical and measurement artifacts. The second prediction is that if the situation (i.e., the organization, the setting, the job, the test and the criterion) is held constant, then validity findings will not vary from study to study. This article tests this prediction empirically using data from a unique series of studies reported by Bender and Loveless (1958). The results are contrary to the situational specificity hypothesis and consistent with the hypothesis that variation in observed validities is due to statistical and measurement artifacts that are unrelated to situations and settings. It is concluded that both major predictions of the situational specificity hypothesis have now been empirically disconfirmed.     

A TEST OF OBJECTIFICATION THEORY WITH LESBIAN WOMEN

This study extends research on objectification theory as it applies to eating disorder symptomatology by examining whether its tenets generalize to women identifying as lesbian. Lesbian women ( N = 181) and a comparison sample of heterosexual women ( N = 196) completed measures of objectification theory constructs (interpersonal sexual objectification, body surveillance, body shame, interoceptive awareness, disordered eating). The model of objectification theory was tested separately for lesbian and heterosexual participants. Path analyses revealed that this model provided a poor fit to the data for the lesbian sample, whereas it provided an excellent fit to the data for the heterosexual sample. Based on the data from the lesbian participants, an exploratory model was evaluated. Overall, findings suggested that the interrelationships among the objectification theory constructs were different and more complex for the lesbian participants than for the heterosexual participants.     

AN EMPIRICAL TEST OF CAUSAL INFERENCE BETWEEN ROLE PERCEPTIONS, SATISFACTION WITH WORK, PERFORMANCE AND ORGANIZATIONAL LEVEL

Previous research has suggested that organizational level may explain to a significant extent the differential impact of role perceptions (i.e., role ambiguity and role conflict) on employee satisfaction and performance. Causal inferences could not be drawn from these studies because of the predominant use of static correlational methods. In this study, in a hospital setting, a six-month time-lag between data collection periods was used to develop causal inferences. The results supported the hypothesis that role ambiguity was a source of causal inference with satisfaction with work at the higher organizational level, while role conflict was a source of causal inference with satisfaction with work at the lower organizational level. The source and direction of causal influence with respect to role perceptions and performance was supported only at the higher organizational level.     

CONCEPTUAL INTEGRATION AND EMPIRICAL TEST OF JOB DESIGN AND COMPENSATION RELATIONSHIPS

A conceptual integration of job design and compensation draws on interdisciplinary job design, job evaluation, and labor economic theory. It is argued that job design influences the number and level of skills required and the degree to which jobs are physically aversive or hazardous. External labor markets also respond to skill and physical requirements. Job evaluation links job design and market forces by analyzing jobs'compensable factors that reflect these requirements, and then relating them to the market through wage surveys across firms. An empirical examination presents relationships between job design and pay or job evaluation measures. Strongly supportive results replicate in two separate samples (total n = 213 jobs) which differ in industries, job types, skill levels, job design measures, job evaluation measures, and labor markets. Motivational job design had higher job evaluation measures reflecting higher skill requirements, and mechanistic and perceptual/motor design had lower evaluation measures reflecting lower skill requirements. Biological design had lower evaluation measures reflecting physical requirements.     

THE VIEW OF THE SYSTEMICIST: A CONVERSATION

In this reflective dialogue, Humberto Maturana speaks about his understanding of living systems and its implications for psychotherapy. Dismissing the myth of "instructive interaction," Maturana argues that a simple causal conceptualization of therapeutic procedures producing precise and predictable effects in clients is incoherent with a theory of structure-determined systems. Instead, he contends that every therapeutic action is embedded in a network of relationships, whose dynamics must be appreciated by therapists in order for them to participate in the client's system and at the same time maintain the distance necessary to relate reflectively and in a noncontrolling fashion. Maturana contends that the profound and un­biased understanding that can follow from this stance fosters an awareness of the observer-dependent nature of "pathology," and provides grounds for a critique of larger cultural systems in shaping the distress or liberation of their members.     

A GENERAL DIFFERENTIAL EQUATION IN PSYCHO-PHYSICS: DERIVATION AND EMPIRICAL TEST

By a reasoning similar to Fechner's a general psychophysical differential equation is developed. Its integration allows the calculation of intrasubjective relations, provided the Weber functions of the two pertinent variables are known. The method is empirically validated for the relation between category and magnitude scales and for the similarity function. Theoretical implications are discussed.     

THE APPLICATION OF NATURALISTIC CONVERSATION TRAINING TO SPEECH PRODUCTION IN CHILDREN WITH SPEECH DISABILITIES

The purpose of this experiment was to test the effectiveness of including speech production into naturalistic conversation training for 2 children with speech production disabilities. A multiple baseline design across behaviors (target phonemes) and across subjects (for the same phoneme) indicated that naturalistic conversation training resulted in improved spontaneous speech production. The implications of these findings are discussed relative to existing models of speech production training and other aspects of communication disorders.     

ENHANCING CONVERSATION SKILLS IN PATIENTS WITH ALZHEIMER'S DISEASE USING A PROSTHETIC MEMORY AID

The effectiveness of teaching Alzheimer's disease subjects to use a prosthetic memory aid when conversing with familiar partners was evaluated. Effects of the training of three topics by caregivers was assessed in daily probes with the experimenter and twice weekly probes with a familiar conversational partner. All 3 subjects learned to use the memory aid with both conversational partners and improved the quality of their conversational content. Subjects made significantly more statements of fact and fewer ambiguous utterances after training on each topic according to a multiple baseline design. All subjects also generated novel, untrained statements in conversations with both partners. Treatment effects were maintained at high levels throughout training and at 3- and 6-week followup sessions. Naive judges rated baseline and posttreatment conversational samples as significantly improved on all eight conversational dimensions.