Table 3.

Intra-rater test-retest agreement of movement compensations observed during 2-Leg Squat with Heel Lift sub-test of the ME Test

Compensation	Observed Agreement	κPABA	κPABA Interpretation*
Right Foot Out	87%	0.74	Substantial
Left Foot Out	96%	0.91	Almost Perfect
Right Foot Flattens	96%	0.91	Almost Perfect
Left Foot Flattens	96%	0.91	Almost Perfect
Right Knee Moves In	100%	1.00	Almost Perfect
Left Knee Moves In	96%	0.91	Almost Perfect
Right Knee Moves Out	91%	0.83	Almost Perfect
Left Knee Moves Out	83%	0.65	Substantial
Excessive Forward Lean	78%	0.57	Moderate
Low Back Arches	74%	0.48	Moderate
Low Back Rounds	100%	1.00	Almost Perfect
Arms Fall Forwards	91%	0.83	Almost Perfect
Right Asymmetrical Weight Shift	74%	0.48	Moderate
Left Asymmetrical Weight Shift	83%	0.65	Substantial

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

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