Williams’ OR Latin square design [Study As­sess­ment]

posted by Helmut Homepage – Vienna, Austria, 2022-03-10 13:29 (724 d 12:18 ago) – Posting: # 22830
Views: 1,115

Hi Bebac user,

❝ In studies that have two tests (T1 T2) and one reference (R1)


❝ If I treated them in statistical analysis as on part ---> it called " William's design"


Depends. If the designs had six sequences (T1T2R|T1RT2|T2T1R|T2RT1|RT1T2|RT2T1), it was a Williams’ design. If it had three sequences (T1T2R|T2RT1|RT1T2), it was a Latin Square.

❝ But if I treated them in statistical analysis as two parts

❝ (T1 vs R and T2 vs R) ---> it called "Latin square design"


❝ IS THIS RIGHT?


No. Design evaluation. You can evaluate a Williams’ design either by a pooled ANOVA (that’s the ‘All-at-Once’ approach) or as two incomplete block designs (that’s the ‘Two-at-a-Time’ approach).
See this article.

Dif-tor heh smusma 🖖🏼 Довге життя Україна! [image]
Helmut Schütz
[image]

The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes

Complete thread:

UA Flag
Activity
 Admin contact
22,919 posts in 4,807 threads, 1,641 registered users;
22 visitors (0 registered, 22 guests [including 10 identified bots]).
Forum time: 01:48 CET (Europe/Vienna)

The analysis of variance is not a mathematical theorem,
but rather a convenient method of arranging the arithmetic.    R.A. Fisher

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz
HTML5