A closer look at (6) shows the hypotheses in an equivalence trial
are the same as
The findings of this equivalence trial
support prior studies and add greater statistical power.
The general concepts of an equivalence trial
, applied to ASSENT-2, a large-scale mortality study comparing two fibrinolytic agents in acute myocardial infarction.
The third frame on the right-hand side of Figure 5 displays the percentage of correct responses involving the D stimuli on symmetry (D-A) and emergent equivalence trials
(D-C, D-B) for each participant.
The study was designed as an equivalence trial
: the investigators sought to determine if the "newer" intervention of the two (SPARC) is therapeutically equivalent to the existing intervention (TVT)--not whether one is superior.
Rates of complications in first-trimester manual vacuum aspiration abortion done by doctors and mid-level providers in South Africa and Viet Nam: a randomised controlled equivalence trial
. Lancet 2006;368:1965-72.
Both who showed delayed emergence in Condition PTB (PI5305 and PI5317) failed exclusively in equivalence trials
. P15305 and PI5317 had 98 and 101 correct responses out of 108 trials, respectively.
Upon completion of the last block, a test block with 180 trials consisting of 36 baseline trials and symmetiy trials, 108 equivalence/ transitivity trials for the MTO and OTM group, and 54 transitivity trials and 54 equivalence trials
for the LS group were introduced.
Phase 7 presented participants with 108 baseline trials and 54 equivalence trials
(i.e., CA trials) without any within-session consequences (i.e., the ITI started immediately after a comparison-stimulus selection).
Studies on reaction time or speed (inversed reaction time) have showed faster responding to baseline trials compared to test trials for emergent relations (e.g., Arntzen & Hansen, 2011; Bentall, Dickins, & Fox, 1993; Spencer & Chase, 1996; Wulfert & Hayes, 1988) and also slower responding to equivalence trials
compared symmetry trials (Arntzen & Hansen, 2011; Wulfert & Hayes, 1988).
BL, Sym, and Eqv refer to baseline, symmetry, and equivalence trials
respectively Table 3 Statistical analyses of blocks to criterion in training Training Chi-sqr STD vs.