The psychology of farming: A review of twenty-five years of research

If all of mankind is to have an adequate diet, we must both stabilize world population and increase markedly world food supply. Moreover, attaining any such increase in food supply may be as much a problem in vocational psychology (e.g. the skill, knowledge, openness to change, and motivation of farmers) as in agricultural technology. The purpose of this review is to further psychological work on agricultural productivity by listing and evaluating a cross-section of relevant articles since 1945. Because psychologists have largely ignored agriculture, most reviewed studies were conducted by other behavioral scientists. Studies are grouped according to three broad areas: (1) predictors of choice, success, and satisfaction; (2) adoption of recommended practices; and (3) communal agriculture.     

Wage rate,nonlabor income,and labor supply in rats

Thirsty rats pressed a lever for water under fixed-ratio schedules, with or without free water at the start of the 1-hr session. Total water intake fell steadily as the fixed-ratio requirement increased; when the fixed-ratio requirements covered a relatively broad range, total lever presses rose and then fell as the requirement increased. Free water decreased total lever presses but increased total intake, especially at the higher fixed-ratio requirements; its effect on total intake proved relatively hard to detect, but grew more apparent as the amount of free water increased. The results conformed more closely to a recent revision of the conservation model than to the original model. By viewing milliliters per press as a wage rate, and free water as nonlabor income, results are brought to bear on predictions derived from economic labor supply theory. In economic terms, rising wage rates were accompanied by a rise followed by a fall in total labor supply, but a steady rise in total income, in conformity with the backward bending labor supply curve. Nonlabor income cut the supply of labor but raised total income, especially at the lower wage rates.     

An experimental and theoretical investigation of the constant-ratio rule and other models of visual letter confusion

The constant-ratio rule (CRR) and four interpretations of R. D. Luce's (In R. D. Luce, R. R. Bush, & E. Galanter (Eds.), Handbook of mathematical psychology (Vol. 1). New York: Wiley, 1963) similarity choice model (SCM) were tested using an alphabetic confusion paradigm. Four stimulus conditions were employed that varied in set size (three, four or five stimulus elements) and set constituency (block letters: A, E, X; F, H, X; A, E, F, H; A, E, F, H, X), and were presented to each subject in independent blocks. The four interpretations of the SCM were generated by constraining one, both, or neither of its similarity and bias parameter sets to be invariant in across-stimulus set model predictions. The strictest interpretation of the SCM (both the similarity and bias parameters constrained), shown to be a special case of the CRR, and the CRR produced nearly equivalent across-set predictions that provided a reasonable first approximation to the data. However, they proved inferior to the least strict SCM (neither the similarity nor bias parameters were constrained; the common interpretation of the SCM in visual confusion). Additionally, the least strict SCM was compared to J. T. Townsend's (Perception and Psychophysics, 1971, 9, 40–50, 449–454) overlap model, the all-or-none model (J. T. Townsend, Journal of Mathematical Psychology, 1978, 18, 25–38), and a modified version of L. H. Nakatani's (Journal of Mathematical Psychology, 1972, 9, 104–127) confusion-choice model. Both the least strict SCM and confusion-choice models produced nearly equivalent within stimulus set predictions that were superior to the overlap and all-or-none within-set predictions. Measurement conditions related to model structure and equivalence relations among the models, many of them new, were examined and compared with the statistical fit results of the investigation.     

Predicting social behavior from personality traits

The classic view of traits as dispositions was examined and a number of ambiguities noted. When clarified, implications for predicting social behaviors from personality variables were derived. Two types of behavioral criterion were delineated, and it was argued that personality measures should be systematically related to multiple act criteria, but not necessarily to single act criteria. It was suggested that behaviors could be treated as items on a behavioral measure of personality and that standard scaling criteria be applied in identifying behaviors that should be related to a given trait dimension. In attempting to identify behaviors which are linearly related to a personality trait, the application of Bayes theorem was shown to be of theoretical interest. Two indices, a validity index and a linearity index, were derived from Bayes theorem and it was shown that validity is a necessary but not sufficient condition for linearity.     

RELIGION AND FRANCIS BACON'S SCIENTIFIC UTOPIANISM

Francis Bacon often is depicted as a patriarch of modernity who promotes human rational action over faith in divine Providence and as a secular humanitarian who realized that improvement of the human condition depended on human action and not on God's saving acts in history. Bacon's New Atlantis is usually described as a “scientific utopia” because its ideal order, harmony, and prosperity are the result of the investigations of nature conducted by the members of Solomon's House. I challenge these characterizations by showing that Bacon's so‐called scientific utopianism is grounded in his religious convictions that his age was one of Providential intervention and that he was God's agent for an apocalyptic transformation of the human condition. I examine the centrality of these religious themes in two of his philosophical works, The Advancement of Learning and The Great Instauration, which are well known for setting out Bacon's critique of the state of learning and for presenting the principles of his epistemology. Analysis of The Advancement of Learning demonstrates Bacon's conviction that his reform of natural philosophy was part of a Providentially guided, twofold restoration of the knowledge of nature and the knowledge of God. Examination of The Great Instauration reveals that Bacon sees his age as one of apocalyptic transformation of the human condition that restores humanity to a prelapsarian state. Analysis of the New Atlantis shows that utopian perfection can be achieved only through a combination of right religion and the proper study of nature. Moreover, when the “scientific” work of Solomon's House is recontextualized within the religious themes of salvation and deliverance that permeate the New Atlantis, the full scope of Bacon's “scientific utopianism” can be seen, and this project is not the one usually portrayed in scholarly treatments. Bacon's program for rehabilitating humanity and its relation to nature is not a secular, scientific advance through which humanity gains dominion over nature and mastery of its own destiny but rather one guided by divine Providence and achieved through pious human effort.     

Images of the disciplining of psychology, 1890–1940

Over the course of psychology’s first several decades, the language used to convey the subject matter gradually shifted from being free and literary to being strictly constrained and disciplined by increasingly focused theoretical demands. The project described here, “Disciplining Psychology,” aimed to depict this transformation by generating images of the faces of three highly influential psychologists—William James, Sigmund Freud, and B. F. Skinner. Each image is composed of the words used in one of each individual’s most important books. The tightening of the disciplinary vocabulary is revealed in the differences among the three arrays of words themselves, but I have also striven to reflect it in the aesthetic aspects of each image. The method used here could easily be extended to a wider array of authors, texts, and psychological topics.