Even considering this more homogeneous sample, we find the more disadvantaged categories showing larger policy effects.
Further research using a larger, more homogeneous sample and longitudinal design whereby measures of mood and color sensitivity are correlated before, during, and after treatment in depressed and manic patients would be justified.
Moreover, to get a more homogeneous sample only properties with a total noise level of at least 50 dB, i.e. the official Swedish threshold value for when noise is assumed to be disturbing, were included.11.11
In order to deal with a more homogeneous sample, we exclude individuals who experienced a maternity leave episode, received redundancy payments, work on a temporary contract or had a part time job during the year.
Our study, contrary to Bialystok et al.'s (2004), investigated a more homogeneous sample, since all the participants were born and raised in Brazil, were extremely familiar with computers and were controlled for video game use.
However, if the wild-caught birds represent a more homogeneous sample than the hand-reared birds, as would be suggested by this hypothesis, then we would expect to see greater variation within the hand-reared group, and there is no evidence from any of our analyses to support this.
Furthermore, studies with more homogeneous samples; and longitudinal designs are warranted in order to gain a better understanding of causation with regard to illness factors specific to schizophrenia.
Replication is needed using larger and more homogeneous samples.
The models explained less of the variance in self-rated active ageing in the Ethnibus sample than in the more homogeneous samples.
The original study was a small pilot study and it is common for larger samples to lack the robust separation found in smaller, more homogeneous samples.
Consequently, the results seem more representative for the general population than results of studies conducted in smaller and more homogeneous samples [ 17, 25].
