Did this research a long time ago at LDS library.
As
grendlsmother says, you must not trust what you find at the LDS, as some of the 'information' it contains comes from very dubious sources.
It's a very useful index indeed to help you find the original documents, available at
www.scotlandspeople.gov.uk - but be aware that the LDS indexing from the originals at SP is incomplete.
For church records the index at SP is complete. It tells you almost as much as the LDS indexes, but doesn't add any of the extra misinformation.
If it's before 1855 and on the LDS site but not on SP, it is definitely not to be trusted. In that case you have to follow up and find out where the information came from to the LDS.