The automated cockpit: A comparison of attitudes towards human and automated pilots

Automation is being used extensively in aviation, particularly in the aircrafts themselves. The airline industry benefits from automation because it often increases efficiency and performance. To date, automation research has focused largely on operator trust and reliance, while largely ignoring the role of affect and trust in shaping the attitudes of the novice consumer. In two studies, we found that participants rated a human pilot more favorably than an auto-pilot. However, attitudes toward the automated pilot were more favorable in a high priced compared to a low priced ticket condition, indicating that participants used price to infer quality. In Study 2, inducing positive affect increased ratings of an automated pilot. Path analyses provided additional evidence that perceptions of automation are largely influenced by feelings.     

Predicting Health Behaviors From Attitudes and Subjective Norms: Between-Subjects and Within-Subjects Analyses

Much previous research (Trafimow & Fishbein, 1994a, 1994b) indicates that some behaviors are mostly under attitudinal control and some are mostly under normative control. Further, other research (Trafimow & Finlay, 1996) demonstrates that people, as well as behaviors, can be generally under attitudinal or normative control. The present research applies these ideas to the domain of health behaviors. Analyses conducted between-subjects for each behavior, and within-subjects across all of the behaviors, demonstrate that both behaviors and people can be under attitudinal or normative control when responding to items pertaining to health.     

A test of whether attributions provide for self-enhancement or self-defense

It is well known that people often make attributions in a way that is favorable to their self-concepts (see R. L. Collins, 1996, for a review). However, it is less clear whether the primary effect is to enhance self-esteem or to defend against the possible loss of self-esteem. The authors performed an experiment to test these possibilities against each other. In a completely between-participants design, participants recalled either a positive behavior or a negative behavior that was performed by themselves or others. They then judged the positivity or negativity of the behavior and made trait attributions about the actor (i.e., himself, herself, or others). The results indicated that although judgments and trait attributions for positive behaviors were similar for the self and for others, judgments and trait attributions for negative behaviors were less negative for the self than they were for others. The authors interpreted these and other findings as supporting a defensive strategy rather than an enhancive strategy.     

Hypothesis testing and theory evaluation at the boundaries: surprising insights from Bayes's theorem

Because the probability of obtaining an experimental finding given that the null hypothesis is true [p(F\H0)] is not the same as the probability that the null hypothesis is true given a finding [p(H0\F)], calculating the former probability does not justify conclusions about the latter one. As the standard null-hypothesis significance-testing procedure does just that, it is logically invalid (J. Cohen, 1994). Theoretically, Bayes's theorem yields p(H0\F), but in practice, researchers rarely know the correct values for 2 of the variables in the theorem. Nevertheless, by considering a wide range of possible values for the unknown variables, it is possible to calculate a range of theoretical values for p(H0\F) and to draw conclusions about both hypothesis testing and theory evaluation.     

AIDS Knowledge,Attitudes, Beliefs,and Practices (KABP) in Two Caribbean Countries: A Comparative Analysis1

The present paper presents the results of AIDS Knowledge, Attitudes, Beliefs, and Practices (KABP) surveys conducted in two Caribbean countries: St. Vincent and St. Lucia. Despite religious, socioeconomic, and literacy differences between the two countries, their citizens are remarkably similar with respect to AIDS knowledge, attitudes, beliefs, and practices. The major differences between the two countries concern the perception of AIDS risk and the relative position of AIDS as a serious problem facing the country. These differences, however, appear unrelated to AIDS knowledge, sexual practices, or the likelihood of engaging in AIDS-protective behaviors. These findings question the role of perceived risk of AIDS as a determinant of AIDS-protective behaviors, and, more important, they question the utility of increasing perceived risk as a strategy in AIDS prevention programs.     

The father-daughter relationship rating scale

A 9-item scale designed to measure perceived relationships of girls and their fathers is internally consistent (alpha=.89) and showed clear factor structure.     

The Effects of Charismatic Leadership on Followers' Self-Concept Accessibility

Shamir, House, and Arthur (1993) suggested that the effects of charismatic leadership on followers' motivation are mediated by the increased salience of collective identities in followers' self-concepts. This study empirically examines the effects of leadership messages on followers' self-concept accessibilities. Charismatic and integrative (combined charismatic and individualized consideration) leadership increased the accessibility of followers' collective self-concepts. Individualized consideration increased the accessibility of followers' private self-concepts. These results support the propositions of the self-concept-based theory of charismatic leadership. Charismatic and integrative leadership messages from a leader resulted in higher follower collective self-concept accessibilities than did routinized messages. This finding underscores the importance of a charismatic leader, even when charismatic messages have become routinized.     

Introduction to the Special Issue on Mediation Analyses: What If Planetary Scientists Used Mediation Analysis to Infer Causation?

Mediation analyses have become extremely popular in the social sciences generally, and in social psychology specifically, because they seem to grant the researcher the ability to draw causal conclusions from correlational data. But this is illusory. Correlation provides poor quality evidence of causation not only in the case of zero-order correlations but also in the case of more complex mediation analyses. The articles in this special issue provide compelling arguments as to why mediation analyses make a weak case for actual mediation. My goal is to cognitively prime the reader for these articles by presenting analyses pertaining to the mean orbital momentum, kinetic energy, and conversion energy of the eight planets of our solar system. Our solar system provides a dramatic case in point where mediation analyses provide blatantly wrong conclusions.     

Using PPT to account for randomness in perception

According to many theories of decision making, of which signal detection theory is the most prominent, randomness is the main factor responsible for imperfect performance. These theories imply that correcting for attenuation due to randomness should result in perfect scores as long as the participants use nonextreme decision criteria. On the basis of a recent advance termed potential performance theory (Trafimow & Rice, Psychological Review 115:447-462, 2008), we performed auditory and visual detection experiments and corrected the scores for attenuation. Most participants in both experiments tended to perform at a less-than-perfect level, even after their scores were corrected. The findings demonstrate that at least one systematic factor influences detection that is not included in signal detection theory.     

Using PPT to Analyze Suboptimal Human–Automation Performance

Diagnostic automation aids are designed to improve human performance by increasing accuracy in event detection tasks. However, human–automation performance has frequently fallen short of expectations, particularly when the aid is highly reliable. In those cases, human–automation performance is often suboptimal, in that a human being augmented with a diagnostic aid does more poorly than the automation itself. Previously, there have been only ambiguous explanations for why this occurs, with few suggestions on how to effectively eliminate suboptimal performance. Fortunately, with the advent of a new general theory of task performance, termed Potential Performance Theory (PPT) by D. Trafimow and S. Rice (2008 Trafimow, D. and Rice, S. 2008. Potential Performance Theory: A general theory of task performance applied to morality. Psychological Review, 115(2): 447–462. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; 2009), one can now determine exactly why suboptimal performance occurs. Results from the present study reveal that inconsistency is the culprit, rather than just poor strategy selection. Furthermore, PPT allows one to determine exactly how much of the performance decrement is because of inconsistency.