POWER_ABK: Stata module to perform power analysis for a balanced (AB)^k design with multiple cases

Ariel Linden ()
Additional contact information
Ariel Linden: Linden Consulting Group, LLC

Statistical Software Components from Boston College Department of Economics

Abstract: power abk computes power, sample size and effect size for tests that compare treatment and control means in a balanced (AB)^k design with multiple cases, using the calculations given in Hedges, Shadish, and Batley (2022). In the balanced (AB)^k design, A refers to a baseline (control or reference) phase, B refers to a treatment phase, and k indicates the number of times (phases) the AB pair is repeated. During each phase, M measurements are taken. For example, (AB)^2 indicates an ABAB design in which 4M measurements are taken on each subject. 2M of these are control measurements and 2M are treatment measurements (i.e., the design is balanced with 2M measurements in each phase). See the PASS Sample Size Software entry for greater detail. Also, the paper by Hedges, Shadish, and Batley (2022) comes with an R program. The results produced by power abk are identical to those produced by the R code.

Language: Stata
Requires: Stata version 16
Keywords: power; sample size; effect size; single case experimental designs; single case designs; ABAB designs (search for similar items in EconPapers)
Date: 2025-11-18
Note: This module should be installed from within Stata by typing "ssc install power_abk". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
References: Add references at CitEc
Citations:

Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/p/power_cmd_abk.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/p/power_cmd_abk_init.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/p/power_abk.sthlp help file (text/plain)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:boc:bocode:s459541

Ordering information: This software item can be ordered from
http://repec.org/docs/ssc.php

Access Statistics for this software item

More software in Statistical Software Components from Boston College Department of Economics Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA. Contact information at EDIRC.
Bibliographic data for series maintained by Christopher F Baum ().