This paper reports the results of two independent studies dealing with saliency effects within the domain of folkbiological knowledge. In Study 1 we present data from a free listing task that explored tree name generation among Tzotzil Maya of Zinacantán (Chiapas). Study 2 compares Menominee Native Americans with Majority Culture (nonprofessional) fish experts in central Wisconsin. Both studies...

The informant AD8 has good discriminatory indices in detecting questionable dementia. However, studies on participant AD8 yielded inconsistent results. This study aims to investigate the discriminatory ability of the AD8 in detecting cognitive impairment at a memory clinic by comparing the informant AD8, participant AD8, Montreal Cognitive Assessment (MoCA), and Mini-Mental State Examination (M...

The construct representation of the cross-informant model of the Child Behavior Checklist (CBCL) and the Teacher Report Form (TRF) was evaluated using confirmatory factor analysis. Samples were collected in seven different countries. The results are based on 13,226 parent ratings and 8893 teacher ratings. The adequacy of fit for the cross-informant model was established on the basis of three ap...

We propose an economic approach to Sybil attack detection. In our Informant protocol, a detective offers a reward for Sybils to reveal themselves. The detective accepts from one identity a security deposit and the name of target peer; the deposit and a reward are given to the target. We prove the optimal strategy for the informant is to play the game if and only if she is Sybil with a low oppor...

In this article, we compare the nature and function of selfparent informant discrepancies for adolescent personality pathology using two methods: standard difference scores (SDS) and polynomial regressions. In total, 489 11to 18year-old youth (54% female) and their parents reported on youth personality pathology traits and general psychopathology. Findings supported convergence and divergence i...

Formal assessment of cognitive decline with cognitive tests can be difficult, requiring either two measurement points or a comparison of 'hold' with 'don't hold' tests. Informant-based assessment provides an alternative approach because informants can adopt a longitudinal perspective and directly rate cognitive change. A study was carried out to assess the validity of informant ratings collecte...

Self-informant rating concordance for attention-deficit/hyperactivity disorder (ADHD) symptoms was assessed in 281 adults at the subscale (Inattention, Hyperactivity-Impulsivity) and individual symptom levels. Potential demographic, diagnostic, and informant identity moderators were also investigated. Concordance levels were similar for current and childhood symptoms. Although moderate positive...

The study examines the consumer’s acceptance of product recommendations from web-based word-of-mouth systems (WWOMS). Conceptualizing WWOMS as an informant-mediated persuasive environment that comprises many communication elements and drawing on the accessibility-diagnosticity model and the theories of informant-mediated communications, this study identifies the critical roles of WWOMS informat...

How do young children decide to trust testimony that contradicts their initial beliefs? The current study examined whether children rely on cues to informant credibility (i.e., history of accuracy) to determine if they would endorse an unexpected label from an informant. Threeand 4-year-olds (N = 60) saw a picture of a hybrid artifact that consisted of features of two typical familiar artifacts...

OBJECTIVES Functional assessments of patients with geropsychiatric disorders accomplished by self-rating, informant rating, and performance test were compared. METHOD Fifty-eight inpatients with major depression or progressive dementia were evaluated on three occasions over 6 months with informant and patient versions of the Activities of Daily Living Scale of the Older Americans Resources an...