Bloggin' 'bout science and life

Category: Education Page 1 of 4

The scientific explanation of disease parameters you see in the news.

Yesterday, I was asked to give a virtual lecture on disease dynamics in our BIO 16 Ecology course here at Dartmouth in the Spring Term. 

I just finished the Powerpoint for the lecture, and I though some might like to see an explanation of the model that under girds all the public policy decisions, where Rcomes from, and how this metric influences Social Distancing, among other things.


The College Admissions Game Continues Unabated

The Washington Post has a new article on the “haves” and “have nots” in the insane college admissions race.  Elite colleges-I work at one-keep this game alive.  For example, US News reports that Dartmouth admitted 11% of applicants to this upcoming class of 2018 admissions.  Colleges use these statistics to make them selves look “in demand”, but this is all a cynical game that I cannot believe people actually play. 


The Best Statistical Software For A Scientist To Use

I am now planning the next offering of a Generalized Linear Mixed Models course that I sometimes teach to our graduate students.  I’m teaching the next offering next spring.  All our graduate students are clamoring for a course in R, and I am sure I’ll get much pressure to teach this course using R. 


Valuable Advice About Editing And Teaching In General

Posted by The Baltimore Sun on Thursday, September 8, 2016

This is hugely valuable advice.  If one is to teach what students need to know, one really has to just simply do it!


Is There A Best Way To Choose A PhD Dissertation Topic?

For every new graduate student, the first major headache is what their dissertation will be about. In many areas of science, graduate students have very little choice. The laboratory leader essentially assigns a topic to the student, based on funding requirements and the laboratory structure.

However, in ecology, evolution and behavior, most laboratories still work on the principle that each graduate student must develop their own thesis topic.  Of course this is done in consultation with their dissertation supervisor, and it is often closely associated with other research that is being done by others in the laboratory.  It may even form a part of the larger project of the laboratory.  However, the student must develop the questions.  In this post, I want to discuss the two main ways that students in these disciplines approach this most important of problems for them.


So I Should Give Students Grades They Don’t Deserve?

Two editorials (see here and here) in today’s The Dartmouth, our student-run newspaper, take great exception with the proposal that the Ad Hoc Committee on Grading Practices and Grade Inflation made to address the problems causing grade inflation.  Both editorials show that students do recognize these problems are severe, but both argue that nothing should be done to correct these problems.  

In fact, their explicit arguments are (1) extracurricular activities are more important than coursework to their education, and (2) students should receive grades they do not deserve.

Let me quote extensively from the editorials so that I am not taking anything out of context.


A Solution To Grade Inflation

I’ve been a university professor since 1991.  Being a university professor is a very weird job, because your performance is frequently measured in ways that don’t necessarily quantify whether you’re doing your job well.  This job essentially had three responsibilities: (1) teach effective classes in your discipline, (2) do world-class research that contributes new knowledge and insights to your discipline, and (3) help run the institution at which you are employed and help run the professional components of your scholarly discipline.  When I was being considered for promotions and every year when the size of my merit raise is being determined, my performances in these three areas (teaching, research, service) was supposedly what determined my success.  

At most universities, only research output is valued.  Dartmouth is different and quite possibly unique: I’ve written before about what it takes to get tenure at Dartmouth, where research and teaching are weighted equally in that evaluation, and your research is held to the standards of the best research universities, and your teaching is held to the standards of the best undergraduate teaching colleges.  However, the way my teaching effectiveness is evaluated is one of the primary causes of grade inflation.  In this post, I will explore how we might change the incentives of faculty to reduce the causes and consequences of grade inflation and thereby provide better educations to our students.  

The rationale presented here summarizes the conclusions made by the committee I was on that considered the causes, consequences and solutions to grade inflation.  You can see a description of our proposal at (click here for the pdf of our full proposal). 


Extracurricular Activities Should Be Just That – EXTRA

Over the last month, the committee I’m on that developed a proposal to address the causes and consequences of grade inflation talked with many students.  In these conversa—tions, many Dartmouth students reported to us that they committed 35-40 hours per week to their extracurricular activities–the equivalent of full-time jobs.  They are essentially people who have full-time jobs and go to school part-time!

Moreover, many of them described these extracurricular activities as being much more important to them than their coursework.  The current student Editorial Board of The Dartmouth student newspaper seems to agree with this sentiment.


A Quantitative Question For A Dartmouth Professor

To the professor who criticized my not giving the median grades for the Art History and Spanish departments during my talk to the full faculty last week, and who said that I was “disingenuous” in saying that they were the only two Dartmouth departments with A- modes, I actually told you all the information you need to know exactly what their medians are.  I just didn’t say it out loud.  Can’t a guy structure points in a talk for effect?  

Here’s the problem for you:  I said that only four departments at Dartmouth had a median of B+ [Chemistry, Economics, Biological Sciences, Mathematics] last year, and all others had a median of A or A-.  I also said that Art History and Spanish are the only two departments with a mode of A- and every other department is higher, as you rightly characterized to Mr. Asch.  So what are their median grades? 

Hint: if their medians were A, what would their modes have to be? 

Perhaps we need that quantitative distributive requirement for faculty as well.



Bad Alumni & Great M.D.’s

Given the press (see here and here for starters) about the work of our committee on how to fix the problems causing grade inflation, I have been hearing a lot from faculty at Dartmouth and at other universities and from Dartmouth alumni (hopefully, the Dartmouth administration will post our full analysis and proposal to the web soon).  They’re running about 95% strongly supportive, in my estimation.  Obviously, not everyone agrees, and some question particular points of our analysis (and see here).  All of this is natural and an important part of the process of probing, questioning and making sure we get this absolutely right.


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