The help page still refers to "target retention rate" and says it can be adjusted. I think I need to adjust mine because it seems like I go through a period of learning a character just fine, but once it is "learned" and starts coming back after a longer interval (1 week plus), I have forgotten more than I would like. And I believe my recent retention rate on my progress page reflects this.

However, I can't find the "target retention rate" adjustment any longer. My wife thinks the ability to adjust that may have gone away. The help page says that, to adjust this:

"If you'd like to customize your Skrittering experience a little bit, hover over the vocabulary drop down and click on the options button."

But I don't get a drop down when I hover over vocabulary. Anyone else know anything about this?

http://www.skritter.com/account/settings-language

Okay, maybe it doesn't make sense for that to be in the language settings, just maybe. Will work on it.

The help page is outdated, yes. We're hacking it up and converting it to on-page help items, but we're not far along that road as yet.

By the way, keep in mind that when you change the setting, it will only apply to characters you review after the change. So you'll have to see each character that's scheduled too long once before it reschedules it (with a relatively shorter interval to target the higher retention rate).