The present study was conducted to examine the hypothesis that children's feelings of uncertainty would mediate between pre-experience and rule acquisition in observational learning. After received a pretest, subjects were requested to estimate their response uncertainty concerning a task used in the pretest. Then they observed a model responding to a series of pictures each of which depicting ...

The aim of this study was to adapt the "Questionnaires for Knowledge and Compliance with Standard Precaution" to Brazilian Portuguese. This was a methodological study with the following steps: 1) initial translations; 2) synthesis of translations; 3) analysis by a committee of experts; 4) back translation; 5) semantic validation; and 6) pretest. The sample was composed of 42 nurses, 12 of which...

The purpose of this study was to pilot the Positive Life Changes (PLC) program, a comprehensive cognitive-behavioral intervention for at-risk adolescents that aims to promote social competencies and to prevent aggression. The program was piloted in 4 intervention groups with a sample of 31 self-referred adolescents (M age 15.64) attending an alternative high school. Questionnaires at pretest an...

objective: in this trial, we intend to assess the effect of simulation-based education approach on advanced cardiovascular life support skills among medical students. methods: through convenient sampling method, 40 interns of mashhad university of medical sciences in their emergency medicine rotation (from september to december 2012) participated in this study. advanced cardiovascular life supp...

Multiple heterogeneous data sources are becoming increasingly available for statistical analyses in the era of big data. As an important example finite-population inference, we develop a unified framework test-and-pool approach to general parameter estimation by combining gold-standard probability and non-probability samples. We focus on case when study variable is observed both datasets estima...

Case Examples A previously healthy woman, age 25 years, presented in the Emergency Department (ED) with sudden onset of pleuritic chest pain. She said that she had had no cough, fever, or chills; she took birthcontrol pills. Physical examination showed the patient to be comfortable breathing room air and to have a pulse oximetry saturation of 92%, respiration rate of 18 breaths per minute, bloo...