Blog

Melatonin is compared to placebo for sleep in a single-group randomized cross-over study (n=328). Participants are randomized to receive melatonin or placebo for 3 months and then take the other agent for 3 months following a 1-week washout period. Which of the following tests would be most appropriate to determine if this is a statistically significant difference in mean sleep latency (i.e., mean minutes to fall asleep)?

Which of the following is TRUE regarding variables in linear/logistic regression models?

Match the Python operation with its result:

Cloning a list using slicing ([:]) avoids side effects caused by aliasing.

Which of the following algorithms has a time complexity of O(logn) in the best-case scenario?

What is the result of factorial (4) using the recursive definition of factorial?

A battery with EMF of 34 V and negligible internal resistance is connected to a resistor network as shown. Before the switch is closed, a current is delivered by the battery. After the switch is closed, a current is delivered by the battery. Find

A battery with EMF of 24 V and negligible internal resistance is connected to a resistor network as shown. Before the switch is closed, a current is delivered by the battery. After the switch is closed, a current is delivered by the battery. Find

Which of the following practices decreases bias in a systematic review? (SELECT ALL THAT APPLY)

What kind of article the following abstract from: The study aimed to compare the long-term efficacy and safety of various biologics in the management of Chronic Rhinosinusitis with Nasal Polyps (CRSwNP). The PubMed, Embase, and Cochrane Library, and Web of Science databases were searched. Two independent reviewers screened the studies, extracted the data, and performed a quality assessment using the Cochrane Risk of Bias tool. 6 RCTs studies were included comparing 4 biologics; dupilumab demonstrated superior long-term efficacy compared to the other three biologics. In the comparison of Nasal Polyp Score, dupilumab showed improvements of 1.84 (95% CI 0.78, 2.91) over mepolizumab and 2.31 (95% CI 0.99, 3.63) over benralizumab.