A research group is evaluating the effects of Drug X versus placebo on lowering blood glucose levels in type II diabetes. Following completion of the study, the group determines that Drug X lowers blood glucose in comparison to the placebo, with a p-value of 0.03, α of 0.05, and power of 80%. Which of the following conclusions can most likely be drawn from this information?

A) There is a 3% chance these results would occur by chance if the alternative hypothesis is true
B) There is a 97% chance the null hypothesis is false
C) There is a 3% chance a type I error occurred
D) There is a 5% chance a type I error occurred
E) There is a 20% chance a type II error may occur over many repeated studies

A study is performed using a new test for measuring serum luteinizing hormone. The average measurement for the study group was 4.0 IU/L, where approximately 0.1% of the enrollees had measurements above 5.5 IU/L. What is the approximate percentage of enrollees who had measurements below 3.0 mIU/L?

]]> 28689 https://mehlmanmedical.com/how-to-crush-biostats-on-usmle-in-2025/ Thu, 01 May 2025 13:23:22 +0000 https://mehlmanmedical.com/?p=27414

In this short clip I talk about how to study for biostatistics for USMLE in 2025. We have a biostatistics course for members only with modules, quizzes, and special access to MCQs not on the YouTube, with double-audio and text answers.

A group of 300 diabetic patients are enrolled in a research study to take Drug X, which is hypothesized to improve insulin sensitivity at tissues. Which of the following is most likely true of this clinical trial?

A research student has measured serum levels of Hormone X for a group of 200 patients with chronic renal insufficiency. A distribution of results is shown below.

Which of the following is most likely to be true regarding this group of patients?

In this clip I address a student’s question about studying biostatistics during dedicated prior to USMLE.

In this clip I talk about how to prepare for psych/behavioral science, biostats, and ethics. I will be posting various random clips like this to informally address questions you guys have from the Telegram group.

In this clip I talk about UWorld biostats review. I will be posting various random clips like this to informally address questions you guys have from the Telegram group.

In this clip I discuss Qs from NBME repeating on the real deal. I will be posting various random clips like this to informally address questions you guys have from the Telegram group.

In this clip I talk about how to study biochem, biostats, and ethics. I will be posting various random clips like this to informally address questions you guys have from the Telegram group.