Materials
Three ‘metal paperclips’, of three lengths; 35 mm, 45 mm, 55 mm were used.
Procedure
Participants were randomly allocated an order to complete the three conditions. In condition one the participant’s finger then wrist was pressed. In condition 2 participants’ finger then forearm …show more content…
Due to the nature of the data, a main effect for Body part could not be calculated. The interaction between response and body part was not statistically significant F (4,76) = 2.53, p= .05.
Inspection of the means indicates that participant’s responses in the wrist-forearm condition (low acuity) (M = 45.50 SD =17.77 95% CI [37.18., 53.82]) were less accurate than the Finger-Wrist condition (M = 48.2 SD = 15.23 95% CI [41.03, 55.29]) and the Finger-Forearm (M = 48.6, SD = 17.82, 95% CI [40.32, 57.00]) (See Appendix A) Three paired samples t-tests revealed trivial effect sizes and non-statistically significant differences in accuracy of participant responses for the Finger-Wrist condition t (19) = -0.20, p= 0.84 95% CI [-5.6, 4.6] g= 0.03, the forearm-wrist t (19) =1.02, p = 0.32 95% CI [2.8, 8.1], g = 0.16, and the Forearm-Finger t (19) = 1.02, p= 0.32 95% CI [-3.3, 9.6] g = 0.18 (see Appendix