To assess the validity of the physical activity questionnaires we used Spearman rank correlation between the questionnaires and the objective measures (VO2peak, TEE and PAL).
However, it is quite difficult to measure the relationship between self-reported and objective measures of productivity at work because the objective measures varied with occupations as well as workplaces and so is the relationship [ 30].
The objective measures of the RCTs are height, body weight, hip/waist-ratio, percentage body fat with impedance recording, blood pressure, muscular strength of neck, shoulder, trunk flexion and extension [ 103], postural stability [ 104] and aerobic capacity [ 105] with some variation between intervention studies on the number of objective measures.
In addition to generating pareto front line between the objectives, measuring GLV and GR as green performance indicators is followed in S-GVRP.
To investigate the relationships between objective measures and the results of subjective assessment of voice quality and speech intelligibility in patients submitted to total laryngectomy and tracheoesophageal (TE) puncture.
Further work carried out by Hu and Loizou studied the correlation between objective measures and the subjective quality of noise-suppressed speech [29] and compared PESQ with a range of segmental SNR, LPC, and distance metrics.
Most, however, are haunted by what their philosophical sympathisers call the "hard problem" of the relationship between objective measures – say of light of a particular wavelength – and qualia, the subjective experience of seeing red.
In this study, the association between the subjective and objective measures varied significantly between both sleep variables groups.
As far as we know, this is the first study investigating the association between objective measures of physical performance and reproductive history in a population of middle-aged women.
No differences in times were found, and yet usability ratings after experience at using the maps differed significantly, in line with the findings for the London designs in Experiment 2. Overall, the dissociation between objective measures of performance and subjective ratings of usability is robust, and appears to reflect expectations and prejudices concerning effective design.
