
One of the most difficult questions to answer is – “How do you know”? This is because it challenges both the logic behind your thinking and the quality of information on which you based your statement or opinion. Is it possible you have taken reliable information and put it together in the wrong way or is the evidence supporting your argument questionable?
Saying something with confidence will lead people to believe that what you are saying is true but without real evidence it is still only an opinion.
The so called scientific method which introduced us to the idea of gathering evidence cannot be attributed to one individual, the high-profile contributors include Aristotle, Ibn al-Haytham, Descartes and Newton. It was clearly an organic process that Newton eloquently described as standing upon the shoulder of giants.
Regardless of the originator, the scientific method has changed the way we think and shaped much of the modern world, from discoveries in medicine, putting a man on the moon and the creation of the internet. But……Not Learning.
Learning science
Although still a relatively new field there are a group of individuals who include cognitive and computer scientists, linguists and educational phycologists who collectively call themselves Learning Scientists. By gathering evidence in the form of data about how students learn they have been able to draw conclusions that are “evidence based”. What can be proven and what cannot. For both students and teachers their findings should be essential reading.
One important point, this does not in any way detract from what a good teacher does, no more than offering advice to doctors on the evidence supporting the success of a new drug.
The top 6 evidence-based study techniques
1. Spaced practice (distributed)
Spaced practice is the exact opposite of cramming, you are effectively taking the same amount of time to study, just doing it over a longer period of time. The evidence shows that if you revisit what you have studied over time it boosts what is called your retrieval and storage strength but if you study in a short period of time, your retrieval strength improves but your storage strength reduces. One implication is that cramming can work but only if you want to retain information for a short period of time, to pass an exam for example. As such it is understandable why students do this, because they have proved in the past it was successful. If, however you need that information for the next level of study, you may need to learn it all over again!
“The effect is simple: the same amount of repeated studying of the same information spaced out over time will lead to greater retention of that information in the long run, compared with repeated studying of the same information for the same amount of time in one study session.”
Watch this video, it’s an excellent summary.
2. Interleaving
Interleaving is simply studying different subjects or topics as opposed to studying one topic very thoroughly before moving to the next, this latter process is called blocking. However as with spaced practice students might find it harder (see desirable difficulty) because interleaving involves retrieval practice and is more difficult than blocked practice, but the knowledge is retained for far longer. One proven technique is for students to alternate between attempting a problem and viewing a worked example. This is much better than attempting to answer one question after another. Its simply about switching activity.
But be careful, interleaving is best done within a subject, don’t move from Chemistry to Art for example. Unfortunately we don’t have any evidence as to what the optimum time period should be, so that might have to come down to trial and error. If however its too short a time there is a danger you will effectively be multitasking, and as I have mentioned in a previous blog, that simply doesn’t work.
This video by brain hack is excellent
“Interleaving occurs when different ideas or problem types are tackled in a sequence, as opposed to the more common method of attempting multiple versions of the same problem in a given study session, known as blocking.”
3. Retrieval practice
This may come as no surprise to many students and certainly not to anyone who reads this blog, its true testing actually improves memory. The process of reflecting back and having to retrieve a memory of something previously learned is very powerful. There is also an added benefit, if you are told there is going to be a test, the increased test expectancy leads to better-quality encoding of the new information.
One concern is that while there is little doubt that retrieval practice works, there is some research to show that pressure, perhaps the result of test anxiety during retrieval can undermine some of the learning benefit.
“However, we know from a century of research that retrieving knowledge actually strengthens it.”
Part two, next month
I hope this insight into evidence based learning has been useful, next month I will cover Elaboration, Concrete examples and Dual coding.
And if you would like to find out more here is a link to the article that quotes much of the research to support these techniques.




A major new idea was presented to the world in 1991, to many it will mean very little but in terms of improving our understanding of the brain it was a milestone.
The self-help and business section of any good bookshop will offer a wealth of advice as to how you can improve your confidence, the narrative will suggest that confidence will lead to success not only in your career but in life.

The title of this month’s blog is not mine but taken from what many would consider a classic book about what can realistically be achieved by someone stood at the front of a classroom or lecture theatre, simply talking. Written some 25 years ago but updated recently Donald A. Bligh’s book takes 346 pages to answer the question, 




Intellectual humility as defined by the authors of a recent paper entitled, 
A point of view is a programme on radio 4 that allows certain well-read, highly educated individuals, usually with large vocabularies to express an opinion. It lasts 10 minutes and is often thought provoking, concluding with a rhetorical question that has no answer.


Donald John Trump was born on June 14, 1946, in Queens, New York, the fourth of five children of Frederick C. and Mary MacLeod Trump. Frederick Trump was of German descent, a builder and real estate developer, who left an estimated $250-$300m. His Mother was from the Scottish Isle of Lewis. Trumps early years were spent at Kew-Forest School in Forest Hills, a fee-paying school in Queens. From there aged 13 he went to the New York Military Academy, leaving in 1964. Fordham University was his next stop but for only two years before moving to the Wharton School of Finance at the University of Pennsylvania, from which he graduated in 1968 with a degree in economics. After leaving Wharton Trump went onto to focus full time on the family businesses, he is now said to be worth $3.7bn.
Hillary Rodham Clinton was born October 26, 1947, Chicago, Illinois. She was the eldest child of Hugh and Dorothy Rodham. Her father, a loyal Republican, owned a textile business which provided a “comfortable income”. Hillary’s mother who met Hugh Rodham whilst working as a company clerk/typist did not have a college education unlike her father. However Dorothy Rodham is said to have had a significant impact on Hillary and believed that gender should not be a barrier.
Clinton, they married in 1975. She graduated with a JD in Law and had a paper published in the Harvard review, under the title “Children Under the Law”.