Repeating the errors of our parents? Parental violence in men's family of origin and conflict management in dating couples

Within a social learning model, family-of-origin violence places men at risk for developing negative communication in their adult relationships. Thirty young men exposed to family-of-origin violence (exposed group) and 30 unexposed young men were videotaped discussing a conflict topic with their female dating partners. Relative to the unexposed group, the exposed men and women reported higher relationship aggression and during discussion showed more negative communication, were more domineering, and the men reported more negative affect. There were no differences between the groups on cognition or heart rate. The conflict management deficits and aggression evident in the exposed group suggest that these partners are at high risk for future relationship aggression and distress.     

The Effect of Exposure to Multiple Lineups on Face Identification Accuracy

This study examines the conditions under which an intervening lineup affects identification accuracy on a subsequent lineup. One hundred and sixty adults observed a photograph of one target individual for 60 s. One week later, they viewed an intervening target-absent lineup and were asked to identify the target individual. Two days later, participants were shown one of three 6-person lineups that included a different photograph of the target face (present or absent), a foil face from the intervening lineup present or absent), plus additional foil faces. The hit rate was higher when the foil face from the intervening lineup was absent from the test lineup and the false alarm rate was greater when the target face was absent from the test lineup. The results suggest that simply being exposed to an innocent suspect in an intervening lineup, whether that innocent suspect is identified by the witness or not, increases the probability of misidentifying the innocent suspect and decreases the probability of correctly identifying the true perpetrator in a subsequent test lineup. The implications of these findings both for police lineup procedures and for the interpretation of lineup results in the courtroom are discussed.     

IDENTIFYING MECHANISMS BEHIND POLICY INTERVENTIONS VIA CAUSAL MEDIATION ANALYSIS

Causal analysis in program evaluation has primarily focused on the question about whether or not a program, or package of policies, has an impact on the targeted outcome of interest. However, it is often of scientific and practical importance to also explain why such impacts occur. In this paper, we introduce causal mediation analysis, a statistical framework for analyzing causal mechanisms that has become increasingly popular in social and medical sciences in recent years. The framework enables us to show exactly what assumptions are sufficient for identifying causal mediation effects for the mechanisms of interest, derive a general algorithm for estimating such mechanism‐specific effects, and formulate a sensitivity analysis for the violation of those identification assumptions. We also discuss an extension of the framework to analyze causal mechanisms in the presence of treatment noncompliance, a common problem in randomized evaluation studies. The methods are illustrated via applications to two intervention studies on pre‐school classes and job‐training workshops.     

Are individuals' familiarity judgments diagnostic of prior contact?

The extensive eyewitness memory research literature has been restricted to memory for strangers. Although it is often assumed that eyewitnesses are more accurate identifying familiar than unfamiliar individuals, little is known about whether individuals' familiarity judgments are diagnostic of prior contact. Caucasian and Asian sophomores (N=139) in two small private high schools viewed yearbook pictures of (a) graduated students from their school who were seniors (fourth year) when participants were freshmen (first year) (familiar) and (b) unfamiliar individuals, and responded whether each was ‘familiar’. The design was completely crossed; familiar faces at each school served as unfamiliar faces at the other school. Based on d′ data, the cross-race effect resulted for familiarity judgments. Also, although individuals' familiarity judgments were diagnostic of prior contact, accuracy was low (mean hit rate=0.42; mean false alarm rate=0.23), rendering an eyewitness's report of having seen a perpetrator casually in the past of limited forensic value.     

Plea bargaining and appraisals of eyewitness evidence by prosecutors and defense attorneys

A sample of defense attorneys and prosecutors from matched California counties participated in a two-part study. Study 1A reports the results of a survey regarding how influential each of the 17 eyewitness factors is in affecting the accuracy of real eyewitness identifications. Generally, both attorney groups considered all eyewitness factors to be influential; on only 6 of the 17 factors were defense attorneys more likely than prosecutors to provide higher importance ratings. In Study 1B, the attorneys answered questions regarding their willingness to plea bargain after reading each of four scenarios in which (1) same- versus cross-race identification and (2) whether the perpetrator was familiar were experimentally manipulated. Both eyewitness factors influenced plea bargaining decisions, and effects were generally consistent for both attorney groups. Results confirm that plea bargaining decisions at least by defense attorneys are made ‘in the shadow of the trial,’ and that appraisals of the strength of eyewitness evidence play a significant role in these decisions.