Obviously you should interview multiple people to get different perspectives on a story, though that doesn't guarantee balance.
"We will have the most radical, open way of selecting candidates but we will guarantee balance, a 50 per cent women team, and we'll guarantee an appropriate number of ethnic-minority candidates in winnable seats".
Although equal airtime legislation was introduced in 2000 to avoid bias, Italy's media watchdog, Agcom, decided last month that the best way of all to guarantee balance was to ban talk shows during the campaign.
Simple randomization ensures independence among subject treatment assignments and prevents potential selection biases, yet it does not guarantee balance in covariate distributions across treatment groups.
Minimisation is used to guarantee balance by community.
Because randomization does not guarantee balance in any variable among treatment groups, there is always some amount of chance that imbalance between groups will occur.
As this was a pilot study, we limited the study to 4 clinics; in cluster randomized trials, 4 clusters are not enough to guarantee balance of individual characteristics at baseline.
The cathode configuration should guarantee balanced rates between O2 accessibility from the circumventing air and H2O removal, and a good electric contact between catalyst layers and current collectors at the same time.
We know all too well that technical expertise doesn't guarantee balanced rationality.
To guarantee balanced sampling of our distributions we generally use logarithmic binning of the respective x-axis, a procedure for curve estimation that corrects for the skewed nature of the scale-free distribution.
