DEVOLVING all power to Holyrood short of defence and foreign affairs is the most popular option for Scotland, according to a survey.

The scenario, often termed devo max, is backed by 32%, one point ahead of independence and seven points clear of more limited devolution. The proportion grows to about two-thirds support for devo max when people are given a straight choice for that option against either independence or the status quo.

The new details, from ScotCen's Scottish Social Attitudes survey, also suggest people are not clear about the implications of greatly extending MSPs' power. There is a split among people wanting public services funded from Edinburgh or London, as well as on whether the rate of income tax should ever vary from the rate in England.