Discover the most talked about and latest scientific content & concepts.

Concept: Problem


To investigate cognitive operations underlying sequential problem solving, we confronted ten Goffin’s cockatoos with a baited box locked by five different inter-locking devices. Subjects were either naïve or had watched a conspecific demonstration, and either faced all devices at once or incrementally. One naïve subject solved the problem without demonstration and with all locks present within the first five sessions (each consisting of one trial of up to 20 minutes), while five others did so after social demonstrations or incremental experience. Performance was aided by species-specific traits including neophilia, a haptic modality and persistence. Most birds showed a ratchet-like progress, rarely failing to solve a stage once they had done it once. In most transfer tests subjects reacted flexibly and sensitively to alterations of the locks' sequencing and functionality, as expected from the presence of predictive inferences about mechanical interactions between the locks.

Concepts: Psychology, Future, Educational psychology, Sequence, Demonstration, Problem solving, Problem, How to Solve It


The KIPPPI (Brief Instrument Psychological and Pedagogical Problem Inventory) is a Dutch questionnaire that measures psychosocial and pedagogical problems in 2-year olds and consists of a KIPPPI Total score, Wellbeing scale, Competence scale, and Autonomy scale. This study examined the reliability, validity, screening accuracy and clinical application of the KIPPPI.

Concepts: Psychometrics, Reliability, Clinical psychology, Accuracy and precision, Problem solving, Problem


Previous studies showed that liberals and conservatives differ in cognitive style. Liberals are more flexible, and tolerant of complexity and novelty, whereas conservatives are more rigid, resistant to change and prefer clear answers. We administered a set of Compound Remote Associate problems, a task extensively used to differentiate problem solving styles (via insight or analysis). Using this task, several researches have proven that self-reports, which differentiate between insight and analytic problem solving, to be reliable and associated with two different neural circuits. In our research we found that participants self-identifying with distinct political orientations demonstrated differences in problem solving strategy. Liberals solved significantly more problems via insight instead of a step-by-step analytic fashion. Our findings extend previous observations that self-identified political orientations reflect differences in cognitive styles. More specifically, we show that type of political orientation is associated with problem solving strategy. The data converge with previous neurobehavioral and cognitive studies indicating a link between cognitive style and the psychological mechanisms that mediate political beliefs.

Concepts: Psychology, Cognitive psychology, Cognition, Cognitive science, Educational psychology, Problem solving, Problem, Political philosophy


Wilson et al. provided a valuable systematic and meta-analytic review of the Triple P-Positive Parenting program in which they identified substantial problems in the quality of available evidence. Their review largely escaped unscathed after Sanders et al.’s critical commentary. However, both of these sources overlook the most serious problem with the Triple P literature, namely, the over-reliance on positive but substantially underpowered trials. Such trials are particularly susceptible to risks of bias and investigator manipulation of apparent results. We offer a justification for the criterion of no fewer than 35 participants in either the intervention or control group. Applying this criterion, 19 of the 23 trials identified by Wilson et al. were eliminated. A number of these trials were so small that it would be statistically improbable that they would detect an effect even if it were present. We argued that clinicians and policymakers implementing Triple P programs incorporate evaluations to ensure that goals are being met and resources are not being squandered. Please see related articles and

Concepts: Scientific method, Critical thinking, Psychometrics, Policy, Problem solving, Problem, The Criterion, The Criterion Collection


Maternal and paternal depression has been associated with infants' behavioral sleep problems. Behavioral sleep interventions, which alter parental cognitions about infant sleep, have improved infant sleep problems. This study reports relationships between parental depression, fatigue, sleep quality, and cognitions about infant sleep pre and post-intervention for a behavioral sleep problem.

Concepts: Psychology, Pregnancy, Infant, Breastfeeding, Maternal bond, Sleep deprivation, Problem, Infancy


Obesity is a rising problem among adolescents in modern societies; it results in long-term cardio-metabolic problems. Possible overlooked drivers of obesity and its consequent cardio-metabolic deficits include videogame addiction and the resulting curtailed sleep; both are growing problems among adolescents. The objective of this study is to examine possible associations among these concepts in adolescents, as a means to point to plausible interventions.

Concepts: Problem solving, Problem


Complex problem solving in science, engineering, and business has become a highly collaborative endeavor. Teams of scientists or engineers collaborate on projects using their social networks to gather new ideas and feedback. Here we bridge the literature on team performance and information networks by studying teams' problem solving abilities as a function of both their within-team networks and their members' extended networks. We show that, while an assigned team’s performance is strongly correlated with its networks of expressive and instrumental ties, only the strongest ties in both networks have an effect on performance. Both networks of strong ties explain more of the variance than other factors, such as measured or self-evaluated technical competencies, or the personalities of the team members. In fact, the inclusion of the network of strong ties renders these factors non-significant in the statistical analysis. Our results have consequences for the organization of teams of scientists, engineers, and other knowledge workers tackling today’s most complex problems.

Concepts: Scientific method, Mathematics, Sociology, Science, Problem solving, Problem, Collaboration, Team


BACKGROUND AND AIMS: The study shows placement of spinal cord stimulators using an Epiducer for placement of multiple cylindrical leads or single S-8 paddle leads. It also gives tips for problem-solving Epiducer use. OBJECTIVE: The study aims to suggest techniques that may help in solving commonly occurring difficulties with Epiducer use. DESIGN: This is a retrospective review. SETTING: These procedures were commonly performed in an outpatient surgery center or hospital setting. CONCLUSION: Some problems with Epiducer placement may occur. But these problem-solving techniques may help in troubleshooting.

Concepts: Retrospective, Problem solving, Problem, Troubleshooting, Failure analysis, Creative problem solving


Crowdsourcing (CS) is the outsourcing of a problem or task to a crowd. Although patient-centered care (PCC) may aim to be tailored to an individual’s needs, the uses of CS for generating ideas, identifying values, solving problems, facilitating research, and educating an audience represent powerful roles that can shape both allocation of shared resources and delivery of personalized care and treatment. CS can often be conducted quickly and at relatively low cost. Pitfalls include bias, risks of research ethics, inadequate quality of data, inadequate metrics, and observer-expectancy effect. Health professionals and consumers in the US should increase their attention to CS for the benefit of PCC. Patients' participation in CS to shape health policy and decisions is one way to pursue PCC itself and may help to improve clinical outcomes through a better understanding of patients' perspectives. CS should especially be used to traverse the quality-cost curve, or decrease costs while preserving or improving quality of care.

Concepts: Health care, Better, Improve, Problem solving, Problem, Crowdsourcing, Outsourcing


This article reports results from a study investigating the efficacy of a proportional problem-solving intervention, schema-based instruction (SBI), in seventh grade. Participants included 806 students with mathematical difficulties in problem solving (MD-PS) from an initial pool of 1,999 seventh grade students in a larger study. Teachers and their students in the larger study were randomly assigned to an SBI or control condition and teachers in both conditions then provided instruction on the topics of ratio, proportion, and percent. We found that students with MD-PS in SBI classrooms scored on average higher than their counterparts in control classrooms on a posttest and delayed posttest administered 9 weeks later. Given students' difficulties with proportional problem-solving and the consequences of these difficulties, an important contribution of this research is the finding that when provided with appropriate instruction, students with MD-PS are capable of enhanced proportional problem-solving performance.

Concepts: Mathematics, Function, Randomized controlled trial, Chaos theory, Ratio, Complexity, Problem solving, Problem