Clarity of Personal Values and Committed Action: Development of a Shorter Engaged Living Scale

The Engaged Living Scale (ELS) is a measure of the process of engaged living, defined by Acceptance and Commitment Therapy as the evaluation and performance of valued life activities. This 16-item measure was recently created and has been validated in middle-aged and chronic pain samples. The aim of the present study was to validate the ELS-16 in a young-adult sample and additionally to develop a shorter ELS. This study was conducted using different samples of Portuguese young-adult college students. The dimensionality of the ELS-16 (which was translated to Portuguese from the original Dutch) was tested through a CFA. The adequacy of the shorter ELS (ELS-9) was also tested through a CFA. The scales’ internal reliability and other psychometric qualities were additionally analysed. Results from the CFA suggested that the model benefits from the establishment of correlations between pairs of error terms of items with similar contents. These results led to the decision to shorten the measure by excluding the item of each pair with the lowest communalities. The ELS-9 was then created and its CFA results revealed good to excellent adjustment values and goodness-of-fit indices. Results also showed that the ELS-16 and the ELS-9 present adequate to good psychometric properties. The present study thus shows that these instruments seem to be reliable measures of engaged living and to perform adequately in young-adult college students, with the ELS-9 being a new contribution to health research and allowing faster administrations.     

Is the study about spontaneous attention to exact quantity based on studies of spontaneous focusing on numerosity?

Li and Baroody present a study in which they investigate toddlers’ spontaneous attention to exact quantity without acknowledging how previous studies of spontaneous focusing on numerosity (SFON) are related to their concept and methods. In this commentary requested by the European Journal of Developmental Psychology, we argue that the concept and the methods of spontaneous attention to exact quantity in the study of Li and Baroody clearly arise from previous research on SFON, as the authors have previously noted in their paper published in 2008. It is highly questionable whether their approach can be theoretically or methodologically dissociated from the previous research on SFON tendency to the extent that it is necessary to use an alternative name for the concept in their study.     

Studies on spontaneous attention to number (SAN) are based on spontaneous focusing on numerosity (SFON)

Li and Baroody presented a study in which they investigate children’ spontaneous attention to exact quantity without acknowledging how previous studies of spontaneous focusing on numerosity (SFON) are related to their concept and methods. The authors’ reaction to our pointing this out makes it is clear that SFON research has had foundational role in the development of Baroody and his colleagues spontaneous attention to number (SAN) idea. Thus the authors must acknowledge the SFON literature as the substantial part of their theoretical and methodological construct. The latest definition of SAN states this undeniably. “SAN is the attentional process that underlies exact number recognition initiated by the mathematical thinking triggered by SFON (e.g., attention to “threeness” directed by conceptual knowledge of “three” activated by SFON).” Furthermore, in their response, Dr Baroody and Dr Li admit that “An awareness of the SFON literature did help us explicitly recognize that, given the ambiguous instructions that do not explicitly direct a child’s attention to number, both the nonverbal production and matching tasks were useful in assessing unguided or spontaneous attention to a number.” It is surprising that in their response to the European Journal of Educational Psychology, the authors maintain their claim that they have cited the SFON literature adequately in their study about SAN.     

Testing the age related differentiation hypothesis through the Wechsler’s scales

According to the age differentiation hypothesis (ADH), g becomes increasingly invested in specific abilities with age: with increasing age, g should account for a decreasing proportion of the variance in any particular cognitive test. However, there is no conclusive evidence concerning this important topic. Data from the Italian, Spanish, and American standardisation samples of the WPPSI and the WISC-R were analysed in the present study for testing the ADH. No changes in the proportion of variance associated with g in the 4–16 age range were found. This pattern does not change depending on the country. Therefore, the ADH is rejected: g seems to be very stable across age, and, thus, it seems to be an equally important component of intelligence test performance from early childhood to late adolescence.     

Impact of emotional appeal on non-profit advertising: A neurophysiological analysis

The number of Non-Profit Organisations (NPOs) has increased in the past years, and they rely on advertising to communicate their causes. Although the effectiveness of NPO advertising has been studied previously, there is still no consensus about which appeal (emotionally positive or negative) increases its effectiveness. On the other hand, the most prevalent research approaches to NPO advertising are traditional research methodologies based on declarative techniques. So, the purpose of this study is to identify which appeal (positive or negative) in NPO advertising is more effective at the three levels of effectiveness (perceptual or communicational effectiveness, psychological or attitudinal effectiveness and behavioural effectiveness), providing a new approach based on the analysis of consumers' unconscious responses to advertising. We conducted an experiment with 113 participants whose neurophysiological responses were evaluated through electroencephalogram (EEG) and eye tracking (ET) while they watched NPO advertisements with a randomly assigned emotional appeal (positive or negative). In addition, a survey revealed behavioural responses. The results showed that considering the psychological or attitudinal effectiveness, positively framed ads are more effective, as there is a positive effect on attitudes towards the ad and a higher positive emotional valence. On the other hand, in perceptual effectiveness, where attention is considered an important variable, the negatively framed ads showed more significant time in the area of interest (AOI) of the image area of the ad, and longer time in the AOI text was observed for positively framed ads. Furthermore, regarding behavioural effectiveness, negatively framed ads seem more effective in eliciting actual donations. The results suggest that a positive appeal is more effective in generating a more positive attitude and a positive emotional valence towards the advertisement, which could benefit the NPO in the long term. But a negative appeal is more effective if the goal is to achieve immediate donations.     

The power of one reinforcer: The effect of a single reinforcer in the context of shaping

During shaping, if the organism is engaged in behaviors other than the current approximation, the amount of time between reinforcers increases. In these situations, the shaper may resort to what is referred to as a “desperation‐driven click.” That is, after a period of no reinforcement, the shaper delivers one reinforcer for a nontarget approximation. Reports from professional animal trainers suggest that the animal may continue performing this new behavior, even if it is reinforced only once. This study attempted to model this phenomenon with college students. Results from the study demonstrated that a desperation‐driven click situation can be reliably produced in a controlled setting. When participants received one reinforcer for interacting with a new object following a period of no reinforcement, they interacted with the new object for a longer or equal amount of time as compared to an object that had a longer history of reinforcement. The results of this study have implications for the understanding of how reinforcement controls behavior.     

On Monadic Operators on Modal Pseudocomplemented De Morgan Algebras and Tetravalent Modal Algebras

Studia Logica - In our paper, monadic modal pseudocomplemented De Morgan algebras (or mmpM) are considered following Halmos’ studies on monadic Boolean algebras. Hence, their topological...