The effect of multiple responses and certainty estimates on the integration of visual information

Integration of information was investigated in two experiments that employed a multiple-observation, tilt-discrimination task. The integration model of signal-detection theory generally overestimated the improvement in discrimination resulting front additional observations. Further, probabilistic multiple responses appeared detrimental to discrimination. These results differ from earlier findings using different discrimination tasks. Reasons for the differences were discussed in terms of within-trial redundance and interference caused by complex response modes.     

Observers detecting a signal in two multiple observation tasks

Signal detection theory (SDT) is tested against a high threshold and a low threshold theory for two kinds of unusual tasks. In the first, the detection of the signal uses the central level of information processing; in the second, the lack of information originates in the stimulus itself rather than in the sensory organs' limitations. The observation is repeated a fixed number of times for the two tasks, and the observed integration of successive information is compared with predictions derived from the SDT and from threshold theories. All results strongly support the SDT which can thus be considered as a general model for risky binary decision-making insofar as these experiments are representative. This would be an argument to replace the classical analysis of the performance in terms of time and number of errors by a new analysis in terms of capability and strategy. The data show how the subjects are more selective for detecting the signal when the task is more difficult, and at the beginning and the end of a series of presentations. The organization of the decision-criteria of the rating-procedure varies with the difficulty of the condition, and with the number of observations in order to allow the subject to discriminate between likelihood ratios which become more precise.     

A signal-detection analysis of fast-and-frugal trees

Models of decision making are distinguished by those that aim for an optimal solution in a world that is precisely specified by a set of assumptions (a so-called "small world") and those that aim for a simple but satisfactory solution in an uncertain world where the assumptions of optimization models may not be met (a so-called "large world"). Few connections have been drawn between these 2 families of models. In this study, the authors show how psychological concepts originating in the classic signal-detection theory (SDT), a small-world approach to decision making, can be used to understand the workings of a class of simple models known as fast-and-frugal trees (FFTs). Results indicate that (a) the setting of the subjective decision criterion in SDT corresponds directly to the choice of exit structure in an FFT; (b) the sensitivity of an FFT (measured in d') is reflected by the order of cues searched and the properties of cues in an FFT, including the mean and variance of cues' individual d's, the intercue correlation, and the number of cues; and (c) compared with the ideal and the optimal sequential sampling models in SDT and a majority model with an information search component, FFTs are extremely frugal (i.e., do not search for much cue information), highly robust, and well adapted to the payoff structure of a task. These findings demonstrate the potential of theory integration in understanding the common underlying psychological structures of apparently disparate theories of cognition.     

Self‐determination theory as a foundation for personality researchers

In this introductory article, we first describe the impetus for this special issue. What made us think that self‐determination theory (SDT) might provide a sort of foundation for the rest of personality psychology? For readers unfamiliar with SDT, we then provide a historical overview that covers the evolution of the six “mini‐theories” that currently compose SDT: cognitive evaluation theory, causality orientations theory, organismic integration theory, basic psychological needs theory, goal contents theory, and relational motivation theory. Following each section are preliminary suggestions about how each mini‐theory might be useful or informative in other branches of personality. This special issue contains nine articles, each of which makes its own attempt to newly link its area of personality research to SDT. Even if SDT is not the appropriate seed for greater consilience in personality psychology, we urge the field not to neglect the search for unifying principles (Sheldon, Cheng, & Hilpert, 2011); it may finally be time to renew the search for a “grand theory” in personality.     

A self-determination perspective of strengths use at work: Examining its determinant and performance implications

We investigate the role of strengths use in the workplace by drawing on self-determination theory (SDT) to propose that strengths use at work can yield performance benefits in terms of task performance and discretionary helping, and that the social context, in the form of leader autonomy support, can promote employees’ strengths use. Further, consistent with an interactional psychology perspective, we contend that the relationship between autonomy support and strengths use will be stronger among individuals with strong independent self-construal. We tested the model using matched data from 194 employees and their supervisors and found evidence for the relevance of strengths use at work, even after accounting for the role of intrinsic motivation. In addition to providing practical implications on developing employee strengths use and how to do so, this study advances theory and research on workplace strength use, SDT, and positive organizational behavior.     

Implicit motives and basic psychological needs

The present article starts with discussing similarities and differences between conceptualizations of human needs in self‐determination theory (SDT; Deci & Ryan [1985], Intrinsic motivation and self‐determination in human behavior; Deci & Ryan [2000], Nebraska symposium on motivation: Perspectives on motivation) and motive disposition theory (MDT; McClelland, Human motivation, 1985). The second section focuses on the two‐process model of psychological needs (Sheldon [2011], Psychological Review, 118: 552), which aims to integrate the two approaches, whereas the third section highlights some aspects of both theories that are still decoupled or even contradictory, but nevertheless still have a high potential to be linked. These three aspects are (a) the noncorresponding concepts of implicit power motive (MDT) and basic need for autonomy (SDT); (b) the differentiation of needs into hope and fear components, which is theoretically embedded in MDT, but not in SDT; and (c) MDT researchers’ differentiation into an implicit and explicit motivational system, which is not included in SDT. Particularly, the last section highlights the potential for areas in which further integration is possible, which provides a foundation for comprehensive and exciting research on human motivation.     

Self-Determination Theory and Motivational Interviewing: Complementary Models to Elicit Voluntary Engagement by Partner-Abusive Men

Research examining intimate partner violence (IPV) has lacked a comprehensive theoretical framework for understanding and treating behavior. The authors propose two complementary models, a treatment approach (Motivational Interviewing, MI) informed by a theory (Self-Determination Theory; SDT), as a way of integrating existing knowledge and suggesting new directions in intervening early with IPV perpetrators. MI is a client-centered clinical intervention intended to assist in strengthening motivation to change and has been widely implemented in the substance abuse literature. SDT is a theory that focuses on internal versus external motivation and considers elements that impact optimal functioning and psychological well-being. These elements include psychological needs, integration of behavioral regulations, and contextual influences on motivation. Each of these aspects of SDT is described in detail and in the context of IPV etiology and intervention using motivational interviewing.     

Self-Determination Theory and Motivational Interviewing: Complementary Models to Elicit Voluntary Engagement by Partner-Abusive Men

Research examining intimate partner violence (IPV) has lacked a comprehensive theoretical framework for understanding and treating behavior. The authors propose two complementary models, a treatment approach (Motivational Interviewing, MI) informed by a theory (Self-Determination Theory; SDT), as a way of integrating existing knowledge and suggesting new directions in intervening early with IPV perpetrators. MI is a client-centered clinical intervention intended to assist in strengthening motivation to change and has been widely implemented in the substance abuse literature. SDT is a theory that focuses on internal versus external motivation and considers elements that impact optimal functioning and psychological well-being. These elements include psychological needs, integration of behavioral regulations, and contextual influences on motivation. Each of these aspects of SDT is described in detail and in the context of IPV etiology and intervention using motivational interviewing.     

On the statistical and theoretical basis of signal detection theory and extensions: Unequal variance, random coefficient, and mixture models

Basic results for conditional means and variances, as well as distributional results, are used to clarify the similarities and differences between various extensions of signal detection theory (SDT). It is shown that a previously presented motivation for the unequal variance SDT model (varying strength) actually leads to a related, yet distinct, model. The distinction has implications for other extensions of SDT, such as models with criteria that vary over trials. It is shown that a mixture extension of SDT is also consistent with unequal variances, but provides a different interpretation of the results; mixture SDT also offers a way to unify results found across several types of studies.     

Landscaping analyses of the ROC predictions of discrete-slots and signal-detection models of visual working memory

A fundamental issue concerning visual working memory is whether its capacity limits are better characterized in terms of a limited number of discrete slots (DSs) or a limited amount of a shared continuous resource. Rouder et al. (2008) found that a mixed-attention, fixed-capacity, DS model provided the best explanation of behavior in a change detection task, outperforming alternative continuous signal detection theory (SDT) models. Here, we extend their analysis in two ways: first, with experiments aimed at better distinguishing between the predictions of the DS and SDT models, and second, using a model-based analysis technique called landscaping, in which the functional-form complexity of the models is taken into account. We find that the balance of evidence supports a DS account of behavior in change detection tasks but that the SDT model is best when the visual displays always consist of the same number of items. In our General Discussion section, we outline, but ultimately reject, a number of potential explanations for the observed pattern of results. We finish by describing future research that is needed to pinpoint the basis for this observed pattern of results.     

Testing theories of recognition memory by predicting performance across paradigms

Signal-detection theory (SDT) accounts of recognition judgments depend on the assumption that recognition decisions result from a single familiarity-based process. However, fits of a hybrid SDT model, called dual-process theory (DPT), have provided evidence for the existence of a second, recollection-based process. In 2 experiments, the authors tested predictions of DPT and SDT by comparing the invariance of parameter estimates between yes/no (Y/N) and 2-alternative forced-choice (2AFC) testing paradigms. Both experiments showed DPT recollection estimates in Y/N to be poorly correlated with recollection estimates in 2AFC. In Experiment 2, SDT predictions explained more variance than DPT predictions. The authors evaluate and discuss the extent to which each model possesses theoretical validity versus computational flexibility in curve fitting.     

Binary ROCs in perception and recognition memory are curved

In recognition memory, a classic finding is that receiver operating characteristics (ROCs) are curvilinear. This has been taken to support the fundamental assumptions of signal detection theory (SDT) over discrete-state models such as the double high-threshold model (2HTM), which predicts linear ROCs. Recently, however, Br?der and Schütz (2009) challenged this argument by noting that most of the data on which support for SDT is based have involved confidence ratings. The authors argued that certain types of rating scale usage may result in curved ROCs even if the generating process is thresholded in nature. From this point of view, only ROCs constructed via experimental bias manipulations are useful for discriminating between the models. Br?der and Schütz conducted a meta-analysis and new experiments that compared SDT and the 2HTM using binary (yes-no) ROCs and found that many of these functions were linear, supporting 2HTM over SDT. We examine all the data reported by Br?der and Schütz, noting important limitations in their methodology, analyses, and conclusions. We report a new meta-analysis and 2 new experiments to examine the issue more closely while avoiding the limitations of Br?der and Schütz's study. These new data indicate that binary ROCs are curved in recognition, consistent with previous findings in perception and reasoning. Our results support classic arguments in favor of SDT and indicate that curvature in ratings ROCs is not task specific. We recommend the ratings procedure and suggest that analyses based on threshold models be treated with caution.     

Decision criteria do not shift: Commentary on Mueller and Weidemann (2008)

The effects of base rates and payoffs on the shapes of rating receiver operating characteristic curves are inconsistent with the basic assumptions of signal detection theory (SDT), in particular the notion of a shifting decision criterion. Mueller and Weidemann (2008) propose that these unexpected phenomena are not due to problems with the decision- criterion construct but are instead due to two compounded effects: instability of the decision criterion across trials, and even greater instability in the flanking criteria that determine which confidence rating will be reported. There are several problems with the authors’ decision-noise hypothesis. First, even if their hypothesis about decision noise were taken for granted, the key feature of the ratings data that rejects the SDT model would remain a mystery. Second, the same violations of SDT that are exhibited in the ratings paradigm are also exhibited in the yes-no detection task when response time is substituted for confidence as a basis for analysis. Finally, the decision-noise hypothesis predicts that sensitivity will increase when one source of this variation-the response on a previous trial-is controlled for. This prediction was consistently violated in both the yes-no and ratings conditions of Mueller and Weidemann’s experiment. In an Addendum, we respond to Weidemann and Mueller’s (2008) reply to this Comment.     

Updating Allport's and Batson's Framework of Religious Orientations: A Reevaluation from the Perspective of Self‐Determination Theory and Wulff's Social Cognitive Model

We theoretically and empirically evaluate Allport's intrinsic‐extrinsic and Batson's quest religious orientations through the lens of self‐determination theory (SDT) and Wulff's social‐cognitive model. Confirming our theoretical analysis, we find that Allport's intrinsic‐extrinsic dichotomy fails to correspond empirically to the differentiation between intrinsic and extrinsic motivation within SDT. Whereas Allport's intrinsic religious orientation was positively related to internalized extrinsic motivation, his two extrinsic (i.e., personal and social) religious orientations were not systematically related to any of the discerned motives within SDT. Furthermore, Batson's quest orientation was unrelated to any of the SDT concepts but was positively related to symbolic disbelief. The present findings suggest that Allport's motivational orientations model needs both refinement and relabeling to better fit with recent theoretical evolutions in the field of motivational psychology.     

Antecedents and trajectories of achievement goals: A self‐determination theory perspective

Background. Research has shown that both achievement goal theory and self‐determination theory (SDT) are quite useful in explaining student motivation and success in academic contexts. However, little is known about how the two theories relate to each other. Aim. The current research used SDT as a framework to understand why students enter classes with particular achievement goal profiles, and also, how those profiles may change over time. Sample. One hundred and eighty‐four undergraduate preservice teachers in a required domain course agreed to participate in the study. Method. Data were collected at three time points during the semester, and both path modelling and multi‐level longitudinal modelling techniques were used. Results. Path modelling techniques with 169 students, results indicated that students' autonomy and relatedness need satisfaction in life predict their initial self‐determined class motivation, which in turn predicts initial mastery‐approach and ‐avoidance goals. Multi‐level longitudinal modelling with 108 students found that perceived teacher autonomy support buffered against the general decline in students' mastery‐approach goals over the course of the semester. Conclusions. Data provide a promising integration of SDT and achievement goal theory, posing a host of potentially fruitful future research questions regarding goal adoption and trajectories.     

Older Adolescents’ Self-Determined Motivations to Disclose Their HIV Status

Disclosure of HIV status is an important topic for youth living with HIV/AIDS, yet theoretical frameworks for understanding HIV disclosure motivations have been poorly applied. Self-determination theory (SDT) proposes that people are at optimal functioning when they are engaging in activities that are interesting and enlivening. This study utilized SDT to understand young adults’ motivations to disclose their HIV status. Interviews and observations were conducted with nine youth aged 17–19 and two adult staff. Results indicate that SDT is useful for understanding types of motivation (i.e., amotivation, controlled, and autonomous motivation) to disclose. Amotivation was the most common type of motivation, and came from two recursive sources: fear of stigma and previous experiences of others disclosing without their consent. Controlled motivation to disclose occurred when participants were motivated to disclose because of reasons related to other people, rather than internal or personal reasons, and included the reasons of wanting to gain a closer relationship, reciprocate a shared secret, for psychological or emotional relief, and for attention. Autonomous motivation included two themes: the life perspective that “Having HIV is just part of who I am,” and valuing educating others because education was perceived as important and beneficial to others. This study extends SDT into the domain of HIV disclosure in older adolescents. People providing guidance and support to older adolescents with HIV/AIDS can use SDT to understand different motivations to disclose.     

To Have or To Be? A Comparison of Materialism‐Based Theories and Self‐Determination Theory as Explanatory Frameworks of Prejudice

ABSTRACT The present study aimed to delineate the psychological structure of materialism and intrinsic and extrinsic value pursuit. Moreover, we compared models based on self‐determination theory (SDT), Fromm's marketing character, and Inglehart's theory of social change to account for racial prejudice. In a sample of undergraduate students (n=131) and adults (n=176) it was revealed that the extrinsic value pursuit Financial Success/Materialism could be distinguished from the extrinsic value scales Physical Appeal and Social Recognition, and Community Concern could be distinguished from the intrinsic value pursuit scales Self‐acceptance and Affiliation. Moreover, Financial Success/Materialism and Community Concern were consistently and significantly related to prejudice, whereas the other SDT facet scales yielded weaker relationships with prejudice. Structural models based on SDT and Inglehart were not corroborated, but instead the present data supported a mediation model based on Fromm's work in which the effect of Community Concern was mediated by Financial Success/Materialism. Broader implications for SDT are critically assessed.     

Signal detection theory analyses of semantic priming in word recognition

Word recognition, semantic priming, and cognitive impenetrability research have used signal detection theory (SDT) measures to separate perceptual and postperceptual processes. In the D. Norris (1986) checking model and model simulation (D. Norris, 1995), priming alters only postperceptual word decision criteria: Stimulus-related priming reduces uncertainty, increasing sensitivity; stimulus-unrelated priming increases false alarms more than hits, reducing sensitivity. This work is cited as strong evidence that criterion changes can alter perceptual sensitivity and that SDT is inappropriate for investigating complex cognitive processes. The authors' current SDT ideal observer analysis of the model demonstrates that related priming does not directly alter sensitivity and that unrelated priming increases only false-alarm rate, reducing sensitivity. This analysis provides new perspectives on SDT concepts of complex decision processing.     

A self-determination process model of physical activity adoption in the context of a randomized controlled trial

Objective: The PA Counseling (PAC) trial tested a primary care intervention using Self-Determination Theory (SDT) as the guiding framework. This paper presents specific results related to SDT constructs in a physical activity (PA) context. Specifically, whether patients who received both brief autonomy supportive PA counseling from their health-care provider and intensive (3 month) autonomy supportive counseling from a PA counselor would report greater levels of autonomy support, autonomous motivation, perceived competence and PA adoption, than patients receiving only brief counseling. In addition, we tested Williams’ SDT process model in the context of PA adoption.Method: Measures of autonomous motivation and perceived competence for PA were measured at baseline and 6 weeks. PA was assessed at baseline and 13 weeks. An autonomy support index was calculated by multiplying minutes of counseling by perceptions of autonomy support. Group differences in autonomy support, autonomous motivation, perceived competence and PA were examined. The SDT process model of PA adoption was tested via path analysis.Results: The results showed higher autonomy support and autonomous motivation at 6 weeks and higher PA levels at 13 weeks for the experimental group. The SDT process model for PA adoption showed that autonomous motivation and perceived competence at 6 weeks significantly predicted 13-week PA for the experimental group.Conclusions: This study provides a rigorous field test of SDT theory in a PA context. It demonstrates the versatility and applicability of the SDT model for health behavior change. SDT-trained PA counselors appear to provide valuable contribution to facilitating patient behavior change, by increasing patient autonomous motivation for PA.