Title: Optimal Design and Statistical Power of Cost-Efficient
Authors@R: person("Zuchao", "Shen", email = "shenzo@mail.uc.edu",
Description: Calculate the optimal sample allocation that minimizes variance of
treatment effect in a multilevel randomized trial under fixed budget and cost structure,
accommodating costs and budget. The reference for proposed methods is:
Shen, Z., & Kelcey, B. (under review). Optimal design of cluster
randomized trials under condition- and unit-specific cost structures.
2018 American Educational Research Association (AERA) annual conference.

Title: Optimal Design and Statistical Power of Multilevel Randomized
Description: Calculate the optimal sample allocation that minimizes the variance of
treatment effect in multilevel randomized trials under fixed budget and cost structure,
accommodating costs and budget. The references for proposed methods are:
(1) Shen, Z., & Kelcey, B. (2018, April). Optimal design of cluster
randomized trials under condition- and unit-specific cost structures. Roundtable
discussion to be presented at American Educational Research Association (AERA)
annual conference; (2) Shen, Z., & Kelcey, B. (under review).
Optimal sample allocation under unequal costs in cluster-randomized trials.
Journal of Educational and Behavioral Statistics; (3) Shen, Z.(in progress).
improve design efficiency for multilevel randomized trials.
(Unpublished doctoral dissertation). University of Cincinnati, Cincinnati, OH.
Packaged: 2018-01-03 15:41:54 UTC; Zuchao Shen

Authors@R: c(person("Zuchao", "Shen", email = "shenzo@mail.uc.edu", role = c("aut", "cre")),
perform power analyses with and without accommodating costs and budget. The references
(1) Shen, Z. (in progress). Using optimal sample allocation to
improve statistical precision and design efficiency for multilevel randomized trials.
(unpublished doctoral dissertation). University of Cincinnati, Cincinnati, OH.
(2) Shen, Z., & Kelcey, B. (revise & resubmit).
Optimal sample allocation accounts for the full variation of sampling costs
Journal of Educational and Behavioral Statistics.
(3) Shen, Z., & Kelcey, B. (2018, April). Optimal design of cluster
discussion presented at American Educational Research Association (AERA)
(4) Champely., S. (2018). pwr: Basic functions for power analysis
(Version 1.2-2) [Software]. Available from
Packaged: 2018-10-03 18:41:34 UTC; ZuchaoShen