Sender demeanor is an individual difference in the believability of message senders that is conceptually independent of actual honesty. Recent research suggests that sender demeanor may be the most influential source of variation in deception detection judgments. Sender demeanor was varied in five experiments (N = 30, 113, 182, 30, and 35) to create demeanor-veracity matched and demeanor-veracity mismatched conditions. The sender demeanor induction explained as much as 98% of the variance in detection accuracy. Three additional studies (N = 30, 113, and 104) investigated the behavioral profiles of more and less believable senders. The results document the strong impact of sender effects in deception detection and provide an explanation of the low-accuracy ceiling in the previous findings.

Past research has shown that people are only slightly better than chance at distinguishing truths from lies. Higher accuracy rates, however, are possible when contextual knowledge is used to judge the veracity of situated message content. The utility of content in context was shown in a series of experiments with students (N = 26, 45, 51, 25, 127) and experts (N = 66). Across studies, average accuracy was 75% in the content in context groups compared with 57% in the controls. These results demonstrate the importance of situating judges within a meaningful context and have important implications for deception theory.

One explanation for the finding of slightly above-chance accuracy in detecting deception experiments is limited variance in sender transparency. The current study sought to increase accuracy by increasing variance in sender transparency with strategic interrogative questioning. Participants (total N = 128) observed cheaters and noncheaters who were questioned with either indirect background questions or strategic questioning. Accuracy was significantly below chance (44%) in the background questions condition and substantially above chance (68%) in the strategic interrogative questioning condition. The results suggest that transparency can be increased by strategic question asking and that accuracy rates well above chance are possible even for untrained judges exposed to only brief communications.

A meta-analysis was conducted on the legitimization of paltry favors (LPF) effect (Cialdini & Schroeder, 1976). A total of 19 studies met the inclusion criteria, with a combined sample of 2,730 subjects. Excluding studies in which the LPF request was delivered via mail and those studies that accepted pledges as the dependent variable resulted in a homogeneous set of effect sizes (r ¼ .18, OR ¼ 2.41). While the data provide clues as to possible mediating mechanisms, the cause of the effect is still not clear. Directions for future research are suggested.

This article investigated how culture influences self-construal and self-expression on Facebook, a popular social networking site. To examine actual self-description representative of self-construal, unaltered independently existing information was garnered from the Facebook pages of Caucasian Americans, African Americans, and ethnic Asians attending a Midwestern University. Findings indicated that culture plays a significant role in influencing the communication of psychological attributes, individuating information, and the quantity of self-descriptive expression. Furthermore, evidence and argumentation are provided for a greater inclusion of African Americans in self-construal research.