Biostatistician Interview Questions


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Biostatistician was asked...June 12, 2013

What is the most widely used method in survival data analysis?

2 Answers

I'd say log-rank test.

Cox regression, it is an semiparametric method

University of Utah

What test would you use to determine if two categorical variables are independent?

1 Answers

Chi Square test.

INC Research

If I had super powers what would they be?

1 Answers


Johnson & Johnson

working experience, need visa or not, salary expectation, strength and weakness.

1 Answers

The same happened to me, I had 4 interviews so far and i have arranged my last one with the Head of the department.I hope everything goes well Less


The height, weight of 100 people is taken in inches and pounds. The mean, median, sd, correlation is given. 1) If the height and weight are off by 5 units, which of the summary stats will change or not? 2) If the height and weight are to be calculated in cms and kgs, which of the summary stats will change or not?

1 Answers

1) The mean and median would change, the standard deviation and correlation would not. 2) The mean, median and standard deviation would change, the correlation will not. Less


2nd round vedio interview

1 Answers

Nothing special but introduce yourself, etc. And then explain your answer to the test, it's easy as long as you have trial experience Less


What would you do if you couldn't meet a deadline even after you've asked for help from colleagues, what would you do?

1 Answers

Answered I would be honest with client and would ask to postpone the deadline. This was not an acceptable answer according to them. What else am I supposed to do? Do some magic trick to get the work done? Less

University of Pennsylvania

What is the difference between parametric and non-parametric regressions?

1 Answers

Parametric distribution follows a well known distribution such as normal distribution, or a chi-square distribution meanwhile the non-parametric distribution has an unknown distribution. Less


48- hour test including study design and a journal review

1 Answers

I spent 1 full day to complete the study design, there is a bug (need one more assumption) in the design question which I brought up during interview - hope they have updated the question. The journal review is very easy. Less


HR interview

1 Answers

I don't feel good since the interviewer seems not interested in my application. I asked for senior position but he said no, reason was others stayed in the company longer were still junior - - logic? Less

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