Range Restriction Affects Factor Analysis: Normality, Estimation, Fit, Loadings, and Reliability.

A sample suffers range restriction (RR) when its variance is reduced comparing with its population variance and, in turn, it fails representing such population. If the RR occurs over the latent factor, not directly over the observed variable, the researcher deals with an indirect RR, common when using convenience samples. This work explores how this problem affects different outputs of the factor analysis: multivariate normality (MVN), estimation process, goodness-of-fit, recovery of factor loadings, and reliability.

Nominal Factor Analysis of Situational Judgment Tests: Evaluation of Latent Dimensionality and Factorial Invariance.

Situational judgment tests have gained popularity in educational and psychological measurement and are widely used in personnel assessment. A situational judgment item presents a hypothetical scenario and a list of actions, and the individuals are asked to select their most likely action for that scenario. Because actions have no explicit order, the item generates nominal responses consisting of the actions selected by the individuals.

Silastic band erosion in the bypassed stomach after Fobi-Pouch operation for obesity: Case report.

Introduction: Worldwide, one of the most commonly performed bariatric surgeries is the laparoscopic Roux-en-Y gastric bypass (LRYGP). Access to the bypassed stomach in patients who have undergone this procedure, for evaluation and/or management in different clinical situations remains a challenge for the physician. In order to facilitate the entrance to the gastric remnant, a silastic marker is left in place during the Fobi-Pouch operation, a modified laparoscopic gastric bypass surgery technique.

Implementing a Tech-Check-Tech Program at a University Health System.

Tech-Check-Tech (TCT) allows a pharmacy technician to perform the final check of medications prepared by another technician. The effect of a TCT program on the time required to process medications in a hospital pharmacy has not been previously reported. To evaluate the effect of implementing a TCT program on the time required to prepare, check, and deliver medications to automated medication supply systems (AMSS) located throughout an academic medical center.

Intravenous sodium bicarbonate therapy in severely acidotic diabetic ketoacidosis.

Background: The use of intravenous bicarbonate in diabetic ketoacidosis (DKA) may be considered for patients with a pH less than 6.9 according to the American Diabetes Association. The impact of this therapy on resolution of acidosis in patients with DKA is unclear.