Author: Anonymous

A research team is enrolling preterm infants into a study evaluating a new monitoring technology. Before enrollment, investigators explain the study purpose, risks, benefits, and alternatives to the parents and emphasize that participation is voluntary and may be withdrawn at any time without affecting the infant’s care. Which ethical principle is best demonstrated?

Level 1 – C-NMR Signal Prediction How many signals would 1,3-propan-di-ol show on a decoupled 13C-NMR spectrum?

A multicenter neonatal study is designed to evaluate a new therapy for bronchopulmonary dysplasia. The investigators modify the protocol to reduce the number of blood samples collected after determining that additional sampling would increase discomfort without providing meaningful scientific benefit. Which ethical principle is best demonstrated?

Level 2 – Snell’s Law – Refractive Index Light travels from air (n=1) into an optical fiber (n=1.44). It is observed that the light will bend towards the normal and the angle of incidence on the end of the fiber is 22 degrees. What is the angle of refraction inside of the fiber?

When interpreting confidence intervals, the probability statement applies to the method, not the specific interval. Fill in the blank: The probability that the true population parament does not fall within the confidence interval is expressed as _____.

If you touch the plantar surface of your distal lower limb what area of the body are you touching? 

True/False: Free (unbound) phenytoin levels are more clinically relevant that total levels in patients with hypoalbuminemia or renal failure. 

A confidence interval provides a range of values used to estimate a population parameter with a given level of confidence. Fill in the blank: Confidence intervals provide an __________ estimate rather than a point estimate.

Match the correct organ or organ system with the correct function.

A report states that there is a 5% chance that our interval estimate does not contain the true population parameter. You are asked to interpret what this 5% represents in statistical inference terminology. What does this 5% represent?