Dissociating mere exposure and repetition priming as a function of word type

The mere exposure effect is defined as enhanced attitude toward a stimulus that has been repeatedly exposed. Repetition priming is defined as facilitated processing of a previously exposed stimulus. We conducted a direct comparison between the two phenomena to test the assumption that the mere exposure effect represents an example of repetition priming. In two experiments, having studied a set of words or nonwords, participants were given a repetition priming task (perceptual identification) or one of two mere exposure (affective liking or preference judgment) tasks. Repetition priming was obtained for both words and nonwords, but only nonwords produced a mere exposure effect. This demonstrates a key boundary for observing the mere exposure effect, one not readily accommodated by a perceptual representation systems (Tulving & Schacter, 1990) account, which assumes that both phenomena should show some sensitivity to nonwords and words.     

Reliability and validity of the Spanish Version of the Crisis in Family Systems-Revised

Increasing the representation of Spanish-speaking study participants requires development and dissemination of reliable and valid translated scales. In the urrent study the construct validity was assessed of the Spanish version of the Crisis n Family Systems-Revised, a measure of contemporary life stressors, with a convenience sample of 377 parents interviewed in a study of childhood asthma, although over half of the respondents did not have children with asthma. Most respondents were foreign-born women between 20 to 60 years old (M=35, SD=7). 52% had not completed high school or its equivalent, and 55% reported a household income of dollar 15,000 or less. For a subsample of 25 respondents test-retest reliability was .86 over 2 wk. Reporting more life stressors was associated with greater depressive symptomatology, poorer physical and mental health function, and lower household income. These relationships support the construct validity of the test in Spanish. This study provided strong evidence that this version is a valid and reliable measure of life stressors for a Spanish-speaking population living in the United States.     

Burden in schizophrenia caregivers: impact of family psychoeducation and awareness of patient suicidality

Family caregivers of persons with schizophrenia and other psychotic disorders experience high levels of burden. Although a number of patient and caregiver predictors of burden have been identified, little research has investigated the contributions of patient depression, suicidal ideation, and substance abuse. In addition, family psychoeducation interventions have reduced patient symptoms, as well as inpatient treatment utilization; however, it is not known whether or not these interventions reduce family burden. This study investigated predictors of family burden and tested to what degree multiple family group treatment (MFGT), relative to a standard care condition, was associated with reduced family burden. Participants were 90 outpatients with a diagnosis of schizophrenia or other psychotic disorders, and their caregivers who were enrolled in a 2 year psychoeducation intervention. The best set of predictors of burden, identified by stepwise linear regression, was young patient age, awareness of patient's suicidal ideation, and family resources. These variables accounted for 32% of the total variance in burden. Findings suggest that caregiver's awareness of patient's suicidal ideation, not patient's report of suicidal ideation; and that patient age, not duration of the illness, were significant independent predictors of burden. When compared to a standard-care condition over 2 years, MFGT did not reduce family caregiver burden. Discussions focus on the relationship between burden and its predictors, and possible reasons why MFGT did not decrease burden. Modifications are proposed that may increase the impact of MFGT.     

Longitudinal analysis of data with multiple binary category choices

In many experiments, subjects mark all categories that apply when responding to a cafeteria or multiple-response question. One exact and two approximate permutation methods are described to analyze binary answers to multiple-response questions in longitudinal experimental designs, wherein the same or matched subjects respond to the same multiple-response question over two or more trials. The described methods provide probabilities, under the null hypothesis, that the multiple binary responses do not differ over trials.     

Lying words: predicting deception from linguistic styles

Telling lies often requires creating a story about an experience or attitude that does not exist. As a result, false stories may be qualitatively different from true stories. The current project investigated the features of linguistic style that distinguish between true and false stories. In an analysis of five independent samples, a computer-based text analysis program correctly classified liars and truth-tellers at a rate of 67% when the topic was constant and a rate of 61% overall. Compared to truth-tellers, liars showed lower cognitive complexity, used fewer self-references and other-references, and used more negative emotion words.     

Sensitivity and specificity of MMPI-2 neurologic correction factors: receiver operating characteristic analysis

A number of Minnesota Multiphasic Personality Inventory-2 (MMPI-2) items have been hypothesized to reflect neurologic symptomatology, rather than psychopathology, among closed-head-injury (CHI) patients. Some investigators have proposed a correction factor interpretive approach, which involves the deletion of such items from the MMPI-2 profile, as a method of reducing the probability of artificial clinical scale elevations due to the symptoms of CHI. The present study employed receiver operating characteristic (ROC) analysis to evaluate the sensitivity and specificity of three correction factors. All three factors demonstrated strong sensitivity when discriminating CHI patients from normal individuals but demonstrated poor specificity when discriminating CHI patients from psychiatric patients. These findings suggest that caution should be applied in using MMPI-2 neurologic correction factors, particularly with patients who might have comorbid psychiatric conditions.     

Loneliness is a unique predictor of age-related differences in systolic blood pressure

A population-based sample of Caucasians, African Americans, and Latino Americans, 50-68 years of age (M = 57.5), from Cook County, Illinois (N = 229), was tested to examine how loneliness and co-occurring psychosocial factors (depressive symptoms, perceived stress, social support, and hostility) were related to indices of cardiovascular and endocrine functioning. Extending prior research, the authors found that loneliness was associated with elevated systolic blood pressure (SBP) and age-related increases in SBP, net of demographic variables, health behavior variables, and the remaining psychosocial factors. Loneliness was not associated with differences in autonomic or endocrine functioning. Although the results are limited by the cross-sectional methods used, they are consistent with the hypothesis that cardiovascular disease contributes to increased morbidity and mortality among lonely individuals.     

Lack of long-lasting consequences of starvation on eating pathology in Jewish Holocaust survivors of Nazi concentration camps

The purpose of the present study was to investigate whether Holocaust survivors will show the same eating pathologies that were found in other participants who had also undergone starvation. Fifty-five Holocaust survivors and 43 matched control participants answered a questionnaire designed to explore eating problems and pathologies described in the literature as lasting for decades after a period of severe food restriction. Confirmation of the survivors' reports was obtained from their children. No significant differences in current eating habits were found between the Holocaust survivors and their matched controls. Prolonged starvation in Holocaust survivors did not lead to disordered eating habits in the sample. These results conflict with the notion that severe starvation consistently leads to food preoccupation and disordered eating.     

A FORTRAN program for computing the exact variance of weighted kappa

An algorithm and associated FORTRAN program are provided for the exact variance of weighted kappa. Program VARKAP provides the weighted kappa test statistic, the exact variance of weighted kappa, a Z score, one-sided lower- and upper-tail N(0,1) probability values, and the two-tail N(0,1) probability value.