Quasi-experimentation A Guide To Design And Analysis Pdf May 2026

Hartley laughed. "You quasi-people have a workaround for everything."

But to be rigorous, she added a and used Huber-White robust standard errors (because monthly scores from the same class aren’t independent — a key point from quasi-experimental guides). quasi-experimentation a guide to design and analysis pdf

"Exactly," Lena said. "And next time, if you can’t randomize, use a — give half the classes the software in Phase 1, the other half in Phase 2. Compare each against itself over time." Hartley laughed

Hartley frowned. "So I should flip a coin? Randomly assign kids to software or no software?" "And next time, if you can’t randomize, use

"You can’t," Lena said. "Parents would riot if their kid got ‘no software.’ Plus, the software is tied to Ms. Chen’s classroom computers. You have a —real-world, no randomization. But that doesn’t mean it’s hopeless."