Spitzer tested 1939 the effects of a type of spaced repetition with over 3600 students who were learning science facts and showed that spaced repetition was effective.

Perhaps the most important discoveries are those which relate to the appropriate distribution of the periods of study...Acts of revision should be spaced in gradually increasing intervals, roughly intervals of one day, two days, four days, eight days, and so on.

The forgetting curve hypothesizes the decline of memory retention in time. This curve shows how information is lost over time when there is no attempt to retain it.

From 1880 to 1885, Hermann Ebbinghaus ran a study about the memorisation of nonsense syllables, such as "WID" and "ZOF" by repeatedly testing himself after various time periods and recording the results. He plotted these results on a graph creating what is now known as the "forgetting curve".

Murre and Dros present a successful replication of Ebbinghaus’ classic forgetting curve from 1880 based on the method of savings. The forgetting curve has indeed been replicated and that it is not completely smooth but most probably shows a jump upwards starting at the 24 hour data point.

The speed of forgetting depends on a number of factors such as the difficulty of the learned material (e.g. how meaningful it is), its representation and physiological factors such as stress and sleep. Furthermore higher original learning also reduces forgetting. The rate differs little between individuals.

Spaced practice is a feasible and cost-effective way to improve the effectiveness and efficiency of learning, and has tremendous potential to improve educational outcomes.

Memory formation becomes more effective with longer inter-stimulus intervals between training sessions because of decreasing temporal overlap between successive, short-lived learning traces.

Librarians in America do something like a couple of billion dollars worth of book business every year.

Some people harbour an awkward clash of feelings - homosexual attraction on the one hand and shame or embarrassment about that attraction on the other. It is well known that the mind struggles to sustain conflicting views.

Even at its most perceptive, sociology deals in abstractions.

I had a really successful 2013, '14, '15. Touring, just doing my thing. Super - I mean, can't complain about nothing. And my road manager got killed. And it ruined everything. Now, I tell people - I don't know if this is a word. But I tell people that that re-sensitized me.

I've spent half my life on planes. I have a lot of love for New Zealand, though. That is where the really arty, whimsical side of the family resided - in Hobbitland.

I have had UFO experiences, and yet, at the same time, I can easily be convinced that none of it is true. It's hard to say whether or not you're a believer. I've been interested in that subject matter, like lots of people. Perhaps foolishly, I've allowed some of that stuff to creep into my music.

Amaal is a music composer, and I am singer, so I think we compliment each other rather than competing with each other.

I want to be invisible.

To be a satirist, at all events. The venom of Pope is what is needed. The sense of delight -- the expansion and the compassion of Shakespeare is no good at all for that. He is a bad comic.

Cobb is a prick. But he sure can hit. God Almighty, that man can hit.

Buy land, they're not making it anymore.

My Dad was my biggest supporter. He never put pressure on me.

There is little for the great part of the history of the world except the bitter tears of pity and the hot tears of wrath.

Relieving the risk of a nuclear conflict with Iran diplomatically is superior than trying to do that militarily.

Agatha Christie's writing is incredibly skillful because her books are incredibly intellectually puzzling and challenging.

Librarians save lives: by handing the right book, at the right time, to a kid in need.

My business is not to show anybody anything; my job is just to do it.

I will say this: when you take any substance, especially in baseball, it's half mental and half physical. If you take this glass of water and you say, 'I'm going to be a better baseball player,' then you probably will be.

My earliest memory is making peach cobbler with my grandmother. A wonderful memory. I grew up in a restaurant family - B.B.Q. restaurant.

You gotta mature, you know.

Rather than disliking theatre, I've expressed a preference for television because it tends to deal in its small way much more with issues and is able to reach a broader church of people than theatre.

The gig economy is empowerment. This new business paradigm empowers individuals to better shape their own destiny and leverage their existing assets to their benefit.

A girl should be two things classy and fabulous.

As a trusted institution with brick-and-mortar facilities in every corner of the United States, our public Postal Service is uniquely positioned to serve as a communications, finance, and service hub for the 21st century.