Reinforcement sensitivity theory of personality questionnaire : measurement and structural invariance across age and gender groups

Revised reinforcement sensitivity theory (r-RST) of personality is a major neuropsychological theory of motivation, emotion, and personality. To measure the specific components of r-RST, the Reinforcement Sensitivity Theory of Personality Questionnaire (RST-PQ; Corr & Cooper(Psychological Assessment 28(11), 1427–1400, 2016) has been developed. The current study examined the measurement (configural, metric, scalar, and residual) and structural (factor variances, covariances) invariance across gender and age groups for an exploratory structural equation modeling (ESEM) version of the theorized six-factor oblique model. A total of 901 adults (M = 32.07, SD = 16.38) from the general community completed ratings of the RST-PQ. Multiple-group confirmatory factor analysis (CFA) supported full measurement and structural invariance. There was also no difference for the six latent mean scores across gender and age. The psychometric and practical implications of the findings are discussed. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature

Evaluating the value of intrapartum fetal scalp blood sampling to predict adverse neonatal outcomes: A UK multicentre observational study.

ObjectiveTo evaluate the value of fetal scalp blood sampling (FBS) as an adjunct test to cardiotocography, to predict adverse neonatal outcomes.Study designA multicentre service evaluation observational study in forty-four maternity units in the UK. We collected data retrospectively on pregnant women with singleton pregnancy who received FBS in labour using a standardised data collection tool. The primary outcome was prediction of neonatal acidaemia diagnosed as umbilical cord arterial pH < 7.05, the secondary outcomes were the prediction of Apgar scores<7 at 1st and 5th minutes and admission to the neonatal intensive care unit (NICU). We evaluated the correlation between the last FBS blood gas before birth and the umbilical cord blood and adjusted for time intervals. We constructed 2 × 2 tables to calculate the sensitivity, specificity, positive (PPV) and negative predictive value (NPV) and generated receiver operating curves to report on the Area Under the Curve (AUC).ResultsIn total, 1422 samples were included in the analysis; pH values showed no correlation (r = 0.001, p = 0.9) in samples obtained within an hour (n = 314), or within half an hour from birth (n = 115) (r=-0.003, p = 0.9). A suboptimal FBS pH value (<7.25) had a poor sensitivity (22%) and PPV (4.9%) to predict neonatal acidaemia with high specificity (87.3%) and NPV (97.4%). Similar performance was noted to predict Apgar scores <7 at 1st (sensitivity 14.5%, specificity 87.5%, PPV 23.4%, NPV 79.6%) and 5th minute (sensitivity 20.3%, specificity 87.4%, PPV 7.6%, NPV 95.6%), and admission to NICU (sensitivity 20.3%, specificity 87.5%, PPV 13.3%, NPV 92.1%). The AUC for FBS pH to predict neonatal acidaemia was 0.59 (95%CI 0.59–0.68, p = 0.3) with similar performance to predict Apgar scores<7 at 1st minute (AUC 0.55, 95%CI 0.51–0.59, p = 0.004), 5th minute (AUC 0.55, 95%CI 0.48–0.62, p = 0.13), and admission to NICU (AUC 0.58, 95%CI 0.52–0.64, p = 0.002).Forty-one neonates had acidaemia (2.8%, 41/1422) at birth. There was no significant correlation in pH values between the FBS and the umbilical cord blood in this subgroup adjusted for sampling time intervals (r = 0.03, p = 0.83).ConclusionsAs an adjunct tool to cardiotocography, FBS offered limited value to predict neonatal acidaemia, low Apgar Scores and admission to NICU