Earlier this morning, Ken Libby, an education researcher whom I respect, sent out this tweet:

I always like a challenge.

So I just searched my blog for all the times I’ve linked to Matthew Di Carlo and the Shanker Blog over the years. Here they are — listed chronologically.  Obviously, I’ve linked there more than ten times — it’s one of the best, if not the best, source of thoughtful posts on education policy research:

Why Nobody Wins In The Education “Research Wars”

When You Hear Claims That Policies Are Working, Read The Fine Print

The Data-Driven Education Movement

Value-Added, For The Record

New Books For The Youngest Victims Of Hurricane Sandy

Value-Added Versus Observations, Part One: Reliability

Measuring Journalist Quality

Reign Of Error: The Publication Of Teacher Data Reports

What Do Teachers Really Think About Education Reform?

Beyond Anecdotes: The Evidence About Financial Incentives And Teacher Retention

The Persistence Of Both Teacher Effects And Misinterpretations Of Research About Them

What Americans Think About Teachers Versus What They’re Hearing

Do Teachers Really Come From The “Bottom Third” Of College Graduates?

When The Legend Becomes Fact, Print The Fact Sheet

What Value-Added Research Does And Does Not Show

The Evidence On Charter Schools

Explaining The Consistently Inconsistent Results Of Charter Schools

The Uncertain Future Of Charter School Proliferation

In Research, What Does A “Significant Effect” Mean?

Revisiting The CREDO Charter School Analysis

Our Annual Testing Data Charade

The Education Reporter’s Dilemma

Settling Scores

Value-Added Versus Observations, Part One: Reliability

When You Hear Claims That Policies Are Working, Read The Fine Print

Why Nobody Wins In The Education “Research Wars”

Character Education

For Many Teachers, Reform Means Higher Risk, Lower Rewards

What Americans Think About Teachers Versus What They’re Hearing

Teacher Value-Added Scores: Publish And Perish

Merit Pay: The End Of Innocence?

A ‘Summary Opinion’ Of The Hoxby NYC Charter School Study

If Gifted And Talented Programs Don’t Boost Scores, Should We Eliminate Them?

In Performance Evaluations, Subjectivity Is Not Random

How Many Teachers Does It Take To Close An Achievement Gap?

The Teaching Experience

PISA For Our Time: A Balanced Look

Premises, Presentation And Predetermination In The Gates MET Study

Atlanta: Bellwether Or Whistleblower For Test-Driven Reform?

Teacher Evaluations: Don’t Begin Assembly Until You Have All The Parts

Peer Effects And Attrition In High-Profile Charter Schools

Value-Added In Teacher Evaluations: Built To Fail

A Big Fish In A Small Causal Pond

Among Charter Schools, Inconsistency Begets Opportunity

A List Of Education And Related Data Resources

How To Make A Misleading Public/Private Earnings Gap Disappear

A Wisconsin Moment For Our Education Policy Debate

Are Public Employee Unions To Blame For States’ Budget Crises?

The Data-Driven Education Movement

A Quality-Based Look At Seniority-Based Layoffs

Students First, Facts Later

Three Questions For Those Who Dismiss The Nashville Merit Pay Study

Persistently Low-Performing Incentives

Attention To Pay

Merit Pay: The End Of Innocence?

Beyond Anecdotes: The Evidence About Financial Incentives And Teacher Retention