Despite proprietary algorithms to account for differences, output from activity trackers worn on different wrists may not be comparable because individuals vary in their reliance on each hand during free-living activities.
Participants (n = 48) wore Fitbit Flex or Flex2 monitors on each wrist for three days. T tests, equivalence tests, and correlations were used to compare steps, Calories, distance, active minutes, and sleep duration recorded by dominant and nondominant wrist-worn monitors and effect sizes and mean absolute and percent difference were calculated.
The nondominant Flex2 monitor was not equivalent to the dominant wrist-worn monitor and recorded significantly more steps/day (absolute difference = 708), miles/day (0.3), and active minutes/day (7.9) than the dominant Flex2 monitor. For all variables, nondominant and dominant output was correlated (r>0.75).
Nondominant and dominant Flex2 monitors are significantly different, but there were small differences for Flex monitors. Research should investigate effects on behavior and replicate findings using other monitors. 相似文献
Much of the previous research on children's understanding of intentions confounded intentions with desires. Intentions and desires are different, in that a desire can be satisfied in a number of ways, but an intention must be satisfied by carrying out the intended action. Children 3 through 7 years of age and adults were presented with situations in which intentions were satisfied but desires were not, or vice versa, in a story-comprehension task (N = 71) and a target-hitting game (N = 45). Although 3- and 4-year-olds were unable to differentiate desires and intentions consistently, 5- and 7-year-olds often matched the adult pattern. Younger children's difficulties in understanding intentions are discussed in terms of their use of a desire-outcome matching strategy and the representational complexities of intentions. 相似文献
Illiteracy is considered to be a significant barrier to employment. Programs are being established to require literacy education and work programs of welfare recipients. The purpose of this study was to determine the literacy skills of a random sample of welfare recipients. One-hundred and six welfare subjects were administered theWoodcock-Johnson Psycho-Educational Battery and a comprehensive interview form. Using common criteria to separate the sample into the literate and functionally illiterate, the groups were found to differ significantly on intellectual capabilities. It was concluded that illiteracy is associated with subaverage intellectual functioning among persons on welfare. A number of recommendations were made pertaining to policy. 相似文献
Students visiting college counseling centers experience a broad range of complex and sometimes severe concerns that are often not adequately addressed by existing clinical measures. In response, the Millon College Counseling Inventory (MCCI; T. Millon, S. N. Strack, C. Millon, & S. Grossman, 2006) was specifically designed for use with contemporary college populations. The authors introduce the MCCI, briefly explain its development, discuss its utility for everyday use in counseling centers, and offer a fictional case illustration. 相似文献