Kelly Hallberg

Implications of Small Samples for Generalization: Adjustments and Rules of Thumb

Elizabeth Tipton, Kelly Hallberg, Larry V. Hedges et al. · Evaluation Review · 2016 · 126 citations

Examining the Internal Validity and Statistical Precision of the Comparative Interrupted Time Series Design by Comparison With a Randomized Experiment

Travis St. Clair, Thomas D. Cook, Kelly Hallberg · American Journal of Evaluation · 2014 · 99 citations

Program Implementation, Treatment Effect, Education +24

The Validity and Precision of the Comparative Interrupted Time-Series Design

Travis St. Clair, Kelly Hallberg, Thomas D. Cook · Journal of Educational and Behavioral Statistics · 2016 · 58 citations

Engineering, Measurement, Field Experiment +23

Short Comparative Interrupted Time Series Using Aggregate School-Level Data in Education Research

Kelly Hallberg, Ryan T. Williams, Andrew Swanlund et al. · Educational Researcher · 2018 · 46 citations

Pretreatment Functional Form, School Functioning, Educational Attainment +12

Pretest Measures of the Study Outcome and the Elimination of Selection Bias: Evidence from Three Within Study Comparisons

Kelly Hallberg, Thomas D. Cook, Peter M. Steiner et al. · Prevention Science · 2016 · 36 citations · Full text

Behavioral Sciences, Selection Bias, Patient Selection +8