Relationships between ignoring instructions and response bias when completing questionnaires

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Timing and speed are suggested to be the two general factors of coordination that differentiate people across a variety of motor movements. This study provides evidence for a third general factor of coordination, that of force control. Subjects that exhibit low variability in reproducing a target force with one effector, such as the finger, show low variability with other effectors, foot or for...

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A model and a technique developed by Wing and Kristofferson (1973) decomposes variance of timing into that putatively due to a central timekeeper (a clock) and that due to implementation of movement through the motor system. A patient with unilateral cerebellar damage, when attempting to tap out a regular series of intervals, showed a large increase in timing variability for the left hand convi...

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Clinical trial participants’ experiences of completing questionnaires: a qualitative study

OBJECTIVES To improve clinical study developments for elderly populations, we aim to understand how they transfer their experiences into validated, standardised self-completed study measurement instruments. We analysed how women (mean 78±8 years of age) participating in a randomised controlled trial (RCT) cognised study instruments used to evaluate outcomes of the intervention. SETTING The in...