Table 4.

Intra-rater test-retest agreement of movement compensations observed during 1-Leg Squat sub-test of the ME Test

Compensation	Observed Agreement	κPABA	κPABA Interpretation*
Right Leg – Foot Flattens	78%	0.57	Moderate
Left Leg – Foot Flattens	78%	0.57	Moderate
Right Leg – Knee Moves In	87%	0.74	Substantial
Left Leg – Knee Moves In	100%	1.00	Almost Perfect
Right Leg – Knee Moves Out	100%	1.00	Almost Perfect
Left Leg – Knee Moves Out	100%	1.00	Almost Perfect
Right Leg – Uncontrolled Trunk	91%	0.83	Almost Perfect
Left Leg – Uncontrolled Trunk	83%	0.65	Substantial
Right Leg – Loss of Balance	83%	0.65	Substantial
Left Leg – Loss of Balance	96%	0.91	Almost Perfect

ME Test = Movement Efficiency Test; κ_PABA = prevalence-adjusted bias-adjusted kappa statistic.

^*κ_PABA interpretation based on guidelines provided by Landis and Koch¹⁹