You can tell someone is older or in academics/research when they say it like this.
For most people “data” is a singular set. It’s clearer to say “these sets of data are conclusive”, while if it’s a single study, “this data is conclusive”
Like why you don’t walk into a police station and say “there were murders everywhere” when you’re talking about crows.
wonderingwanderer@sopuli.xyz 11 hours ago
This datum is conclusive!