Intending or Pretending? Automatic Evaluations of Goal Cues Discriminate True and False Intentions

This research presents a novel approach to discriminating between true and deceptive statements about intended future behavior. Arguing that true intentions are goal‐directed, we predict that people who genuinely intend to pursue a reported goal will implicitly evaluate goal‐relevant cues positively, whereas people who do not intend to pursue the goal will not. Participants in an experiment were instructed to tell the truth about a planned future behavior (true intention) or to falsely report that same behavior to mask their actual mock‐criminal intention (false intention). As predicted, an evaluative priming task showed that participants with true intention exhibited implicit positive evaluations of cues relevant to the reported goal, whereas participants with false intention did not. Subsequent analyses showed that implicit positivity significantly discriminated between true and false intentions. The findings are discussed in terms of theoretical contributions and implications for the development of future detection tools. Copyright © 2012 John Wiley & Sons, Ltd.     

Expect the Unexpected? Variations in Question Type Elicit Cues to Deception in Joint Interviewer Contexts

We examined the effect of (i) a second interviewer's demeanour and (ii) asking expected and unexpected questions on cues to deception. We predicted that liars compared with truth tellers would provide more detail to expected questions and less detail to unexpected questions, particularly when the second interviewer is supportive. Liars prepare answers for expected questions, and a supportive interviewer will encourage them to provide more detail. By definition, liars have not prepared answers for unexpected questions, and their answers to such questions will be less detailed. Participants (N = 168) appeared before two interviewers: The first asked all the questions, and the second remained silent. The second interviewer exhibited either a supportive or a neutral demeanour. As predicted, liars provided more detail to expected questions and less detail to unexpected questions, particularly when the second interviewer was supportive. In conclusion, a supportive second interviewer elicits cues to deceit. Copyright © 2013 John Wiley & Sons, Ltd.     

Bottled memories: On how alcohol affects eyewitness recall

This study investigated how different doses of alcohol affected eyewitness recall. Participants (N = 126) were randomly assigned to three groups with different blood alcohol concentration (BAC), either a control group (mean BAC 0.00%, N = 42), a lower alcohol dose group (mean BAC 0.04%, N = 40), or a higher alcohol dose group (mean BAC 0.06%, N = 44). After consumption, participants witnessed a movie of a mock crime and were interviewed one week later. The main results showed that witnesses with the higher intoxication level recalled fewer details compared to witnesses with the lower intoxication level. The amount of alcohol consumed did not have an impact on the accuracy rate. No sex differences were found. The results are discussed in the light of past research. We conclude that more studies are needed before recommendations can be made to an applied setting.     

Agreement and similarity in self-other perceptions of moral character

We surveyed well-acquainted dyads about two key moral character traits (Honesty–Humility, Guilt Proneness), as well as several other individual differences. We examined self-other agreement, similarity, assumed similarity, and similarity-free agreement (i.e., self-other agreement controlling for similarity and assumed similarity). Participants projected their own level of moral character onto their peers (i.e., moderately high assumed similarity), but were nonetheless able to judge moral character with reasonable accuracy (moderately high self-other agreement and similarity-free agreement), suggesting that moral character traits can be detected by well-acquainted others. Regardless of reporting method, Honesty–Humility and Guilt Proneness were correlated with delinquency, unethical decision making, and counterproductive work behavior, suggesting that unethical behavior is committed disproportionately by people with low levels of these character traits.     

The effects of counsellor gender and problem type on help-seeking attitudes among Turkish high school students

The present study explores gender differences in help-seeking attitudes and the effects of counsellor gender and problem type on those attitudes among Turkish high school students. The Attitudes towards Seeking Help Scale and a survey instrument concerning related factors were administered to 342 adolescents. ANOVAs show that male and female students displayed different help-seeking attitudes. Females held much more positive help-seeking attitudes than did males. For females, neither counsellor gender, problem type nor their interaction affected help-seeking attitudes. By contrast, among males, the interaction of counsellor gender and problem type influenced total help-seeking attitudes as well as two of the subscales – psychological distress and confidence in mental health professionals. Limitations, suggestions for further research and implications are discussed.     

Lifestyle effects of group health education for patients with coronary heart disease

Abstract

In the present study, effects of a health education (INFO) and a PsychoEducational Prevention (INFO + PEP) Programme were Investigated in three hospitals. These programmes were offered to groups of coronary heart disease (CHD) patients and their partners alter discharge from hospital. The INFO was offered to 127 CHD patients in addition to FIT (i.e. standard medical care and physical training). The PEP was offered to 90 Patients in, addition to the INFO and FIT. A control group of 122 patients received only FIT. The INFO and the PEP consisted of four weekly two-hour group sessions each. In addition, the PEP was followed by seven telephone follow-up contacts.

On average, patients improved their lifestyles during the first three months. Between three and twelve months an extra improvement was found for eating habits, whereas there was a relapse for smoking and a sedentary lifestyle. In the short term, angina pectoris and a longer period of heart complaints were parallelled with a decrease in the risk of maintaining unhealthy eating habits, whereas in the long term a longer period of heart complaints a younger age and unemployment predicted a lower risk of maintaining unhealthy eating habits In the short term living with a partner and in the long term female gender were predictive of continued smoking behaviour In the short term, older age, a first CABG and a specific hospital setting decreased the risk of a continued sedentary lifestyle.

The FIT + INFO + PEP had a favourable short-term effect on eating habits. For smoking and a sedentary lifestyle, however, there were negative effects. In the short term patients in the FIT +INFO and those in the FIT +INFO+PEP had significantly more problems in quitting a sedentary lifestyle than those in the FIT intervention in the long term, patients in the FIT + INFO had significantly more problems in stopping smoking compared to these in the FIT.     

Ab initio investigation of electron-phonon interaction in LaSn3 and CaSn3

ABSTRACT

We present results for the structural, electronic, vibrational, and electron-phonon coupling properties of LaSn₃ and CaSn₃ adopting the simple cubic AuCu₃-type structure obtained using the the generalised gradient approximation of the density functional theory and plane wave ab initio pseudopotential method. Our electronic results show that both materials display metallic character with several bands, which have mainly Sn 5p character, crossing the Fermi level. The calculated phonon spectrum of LaSn₃ accords very well with reported experimental measurements. The weights of the peaks in the Eliashberg spectral function of both compounds are enhanced with the use of experimental lattice constant in our electron-phonon calculation, increasing the value of average electron phonon coupling parameter from 0.876 to 0.937 for LaSn₃ (by 7%) and from 0.642 to 0.725 for CaSn₃ (by 13%). The use of experimental lattice constant also improves the agreement between theoretical and experimental values of the superconducting temperature for both compounds.     

High-efficiency single-layer organic light-emitting diode based on green fluorescent protein

We have fabricated a molecular organic light-emitting device comprising indium–tin oxide/a molecular organic layer/aluminum in which the organic layer is a green fluorescent protein. The device exhibits peak external quantum and power efficiencies of 8?±?0.2% and 13?±?0.7?lm?W?^??1 at a current of J?=?1.5?A?m^?2, respectively. In addition, the turn-on voltage is 2.5?V for 1?cd?m^?2 and the maximum luminance achieved is 1275?cd?m^?2. This good performance can be explained by the presence of singlet-excited states, leading to a high internal efficiency.     

Comparing two independent groups: A test based on a one‐step M‐estimator and bootstrap‐t

A new test is proposed for the problem of comparing two independent groups in terms of some measure of location. The proposed test () uses a one‐step M‐estimator and a bootstrap‐t method with the procedure proposed by Özdemir and Kurt (2006) . Eight methods were compared in terms of actual Type I error and power when the underlying distributions differ in skewness and kurtosis under heterogeneity of variances. For the 21 theoretical distributions, the Yuen test with the bootstrap‐t method was the most favourable, followed by test. For the five real data sets, the proposed test and percentile bootstrap method with the one‐step M‐estimator performed best.