Reliability and validity of machine vision for the assessment of facial expressions

Automated assessment of facial expressions with machine vision software opens up new opportunities for the assessment of facial expression in a shrewd and economic way in psychological and applied research. We investigated the assessment quality of one machine vision algorithm (FACET) in a study using standardized databases of dynamic facial expressions in different conditions (angle, distance, lighting and resolution). We found high reliability in terms of ratings concordance across conditions for facial expressions (intraclass correlation, ICC = 0.96) and action units (ICC = 0.78). Signal detection analyses showed good classification for both facial expressions (area under the curve, AUC > 0.99) and action unit scores (AUC = 0.91). In a second study, we investigated the convergent validity of machine vision assessment and electromyography (EMG) with regard to reaction times measured during the production of smiles (action unit 12) and frowns (action unit 4). To this end, we simultaneously measured EMG and expression classification with machine vision software in a response priming task with validly and invalidly primed responses. Both, EMG and machine vision data revealed similar performance costs in reaction times of inhibiting the falsely prepared expression and reprogramming the correct one. These results support machine vision as a suitable tool for assessing experimental effects in facial reaction times.     

Psychometric properties and factor analyses of the achievement motivation measure

ABSTRACT

The purpose of this study was to develop a theoretically-driven instrument of achievement motivation and determine its validation. The Achievement Motivation Measure (AMM) is closely aligned with Atkinson and McClelland's (1948, 1953, 1961) theoretical constructs of achievement thoughts and behaviours. Confirmatory and exploratory factor analysis (CFA and EFA) methods evaluated the structural validity of a newly developed instrument, the AMM, by assessing achievement thoughts and behaviours. Participants included 632 graduate and undergraduate university students. EFA supported two factors (Achievement Thoughts and Achievement Behaviours) with 13 items. Findings of a CFA supported the modified two-factor model as fitting the data. The theoretically supported AMM effectively measured achievement motivation by assessing achievement thoughts and behaviours.     

Time course of attentional bias to emotional scenes in anxiety: Gaze direction and duration

Pictures of emotionally neutral, positive, and negative (threat‐ or harm‐related) scenes were presented for 3 seconds, paired with nonemotional control pictures. The eye fixations of high and low trait anxiety participants were monitored. Intensity of stimulus emotionality was varied, with two levels of perceptual salience for each picture (colour vs. greyscale). Regardless of perceptual salience, high anxiety was associated with preferential attention: (a) towards all types of emotional stimuli in initial orienting, as revealed by a higher probability of first fixation on the emotional picture than on the neutral picture of a pair; (b) towards positive and harm stimuli in a subsequent stage of early engagement, as shown by longer viewing times during the first 500 ms following onset of the pictures; and with (c) attention away from (i.e., avoidance) harm stimuli in a later phase, as indicated by shorter viewing times and lower frequency of fixation during the last 1000 ms of picture exposure. This suggests that the nature of the attentional bias varies as a function of the time course in the processing of emotional pictures.     

Personality and value correlates of careless and erratic questionnaire responses

This study examined the individual difference correlates of the validity scale from the Hogan Personality Inventory (HPI) which measures the extent to which a respondent has reported in a careless, erratic or random way. The aim was to determine the typical response profile of a careless and erratic respondent. Over 10,000 adults completed three measures: one of normal “bright-side” personality (HPI), one of “dark-side” personality (Hogan Development Survey, HDS) and one of motivation (Motives, Values, Preferences Inventory, MVPI). Scores on these measures were related to the validity scale scores using correlations and regressions. Bright and dark side measures were more strongly and logically related to validity scores than motives and values. Implications and limitations are discussed.     

Evidence for the Phase Transition from Rule I to Rule II on the Balance Scale Task

A central and recurrent theme in developmental psychology is the question whether development proceeds continuously or discontinuously. This question is difficult to answer because the two types of development may be hard to distinguish. To investigate whether change is discontinuous, one requires a formal model for discontinuous development. Such a model should provide operational, empirical criteria to investigate the nature of development. The cusp model, which is derived from catastrophe theory, is a formal model of discontinuity that provides such criteria. Eight criteria, so-called catastrophe flags, can be derived from the model. Some of these flags are predicted in other models of discontinuity, but others, notably hysteresis, are unique to catastrophe theory. In the present research, it is tested whether the transition from Rule I to Rule II on the balance scale task proceeds discontinuously. The present research centers around five catastrophe flags: bimodality, inaccessible region, sudden jump, divergence, and hysteresis. Two experiments are reported. In Experiment 1, a paper-and-pencil version of the balance scale task was administered to 314 children who were 6 to 10 years old. In Experiment 2, an adapted version of the test was administered to 302 children who were 6 to 10 years old. Bimodality, inaccessible region, hysteresis, and sudden jump were clearly observed. Divergence was not observed. The presence of four of the five flags strongly supports the hypothesis that the transition from Rule I to Rule II is discontinuous.     

Exploration of anomalous perceptual experiences in migraine between attacks using the Cardiff Anomalous Perceptions Scale

Distortions in sensory experiences that precede a migraine attack have been extensively documented, the most well-known being the visual aura. Distortions in the experience of other senses are also reported as part of an aura, albeit less frequently, together with changes in the perception or ownership of the body or body parts. There are many examples of differences in aspects of visual perception between migraine and control groups, between attacks, but not as much on unusual experiences involving other senses, the sense of the body or the experience of the environment. Seventy-seven migraine (33 with aura) and 74 control participants took part. Anomalous perceptions were experienced by both migraine and control groups, but more with migraine experienced them and rated them as more distressing, intrusive and frequent. Associations with reports of visual triggers of migraine and visual discomfort are presented. This study is the first to show relationships between these factors.     

Behavior during cyberbullying episodes: Initial validation of a new self-report scale

Research on cyberbullying has been growing worldwide, with much of the focus on the characteristics of perpetrators and targets of cyberbullying. In recent years, increasing attention has been paid on bystanders of cyber-attacks. This study presents the Italian validation of a newly developed self-report scale that measures different forms of participation in cyberbullying, namely cyberbullying, cybervictimization, cyber-defending and cyber-passive bystanding. We used responses from 561 young adolescents (289 girls; mean age = 12 years, 1 month; SD = 9 months) attending middle schools in Italy. A 16-item scale was developed paralleling the content of an already existing scale that measures young adolescents’ behavior in traditional bullying. Confirmatory factor analysis supported the four-dimensional structure of the scale and the four subscale's scores showed acceptable levels of internal consistency. Multigroup analyses demonstrated full scalar invariance of the scale across gender groups. Finally, each behavior in the electronic context was positively correlated with its counterpart in the school context, suggesting certain stability across contexts. It is concluded that the scale may be a first, promising attempt to measure different youths’ behavior during cyberbullying episodes.     

An Ecological Intelligence Scale Intended for Adults

Abstract

Ecological intelligence (EI) refers to systemic thinking, ecophilosophy, holistic perspective, collective lifestyle and cultural commons. It is difficult to determine the exact nature of EI and its characteristics due to it being a complex concept. The aim of this study is to develop an EI scale intended for adults which is based on a holistic perspective, social intelligence and economy and try to specify the concept of ecological intelligence. The goodness-of-fit values were at an acceptable level. The results were Cronbach’s alpha: 0.824; KMO: 0.878; X²/df: 3.39; RMSEA: 0.077; SRMR: 0.0504; GFI, AGFI, NFI, NNFI, IFI, CFI?≥?0.90. These results showed that the scale is reliable, and has validity and strong theoretical background. There are 12 items within the scale.