Timing, sequencing, and executive control in repetitive movement production

The authors demonstrate that the timing and sequencing of target durations require low-level timing and executive control. Sixteen young (M-sub(age) = 19 years) and 16 older (M-sub(age) = 70 years) adults participated in 2 experiments. In Experiment 1, individual mean-variance functions for low-level timing (isochronous tapping) and the sequencing of multiple targets (rhythm production) revealed (a) a dissociation of low-level timing and sequencing in both age groups, (b) negligible age differences for low-level timing, and (c) large age differences for sequencing. Experiment 2 supported the distinction between low-level timing and executive functions: Selection against a dominant rhythm and switching between rhythms impaired performances in both age groups and induced pronounced perseveration of the dominant pattern in older adults.     

Use of the Hereford Parent Attitude Survey as an outcome measure in parent education research

Research on outcome evaluation published since 1980 on the Hereford Parent Attitude Survey was reviewed in terms of sample size, type of parent training program used, and the scales' sensitivity to change in parental attitudes after intervention. Some support for the sensitivity of the Hereford was found, and, as an evaluation device to assess whether program goals have been achieved, the scale proved to be a useful instrument. The Hereford scale can be applied with reasonable confidence in research on parenting and in strategies to enhance effective parenting.