
Dr Robert Bjork, a cognitive psychologist coined a term back in 1994 called desirable difficulty. He suggested that introducing certain difficulties into the learning process greatly improved long-term retention.
The reason Bjork refers to the term ‘desirable’ is because having access to long term knowledge is the goal of most forms of learning. The term ‘difficulty’ however is not simply about making the process of learning harder but refers to the fact it has several difficult side effects. For example, it will slow down student progression and may result in the student feeling as if they are not learning efficiently or effectively. And that means they become unhappy with the subject and the teaching.
In essence ‘desirable difficulty’ refers to a learning task that may prove difficult initially but that leads to greater learning over an extended period of time.
How to make something more difficult?
The reason making something difficult works is because it impacts the encoding, storage and retrieval process. If something requires some degree of effort to encode it will be easier to retrieve, if it’s easy to encode, it is merely stored for the short term and as a result easily forgotten.
But just because something is difficult doesn’t mean it is desirably difficult. Bjork suggests a number of ways in which difficulties should be introduced.
Spacing learning and interleaving – study in small chunks, then either take a break or study another topic or subject, that’s the interleaving. Doing this is inefficient and will result in taking more time but it should help you retain the knowledge for the long term.
It highlights an important difference between tuition, and revision. Don’t leave the learning part until the last minute, chip away at it day by day, little and often. But when you get to revision, then cram as hard as you can. The cramming may not help with long term retention but it will get you through the exam. The number of students who come out of an exam having crammed for days, that can’t remember what was on the exam paper let alone what they have learned is evidence that Bjork does have a point.
Testing – controversial in some circles but testing to learn is not fundamentally wrong, it’s the implications and environment of testing that gets it a bad press.
Which one of the following is best?
- Study Study Study Study – Test
- Study Study Study – Test Test
- Study Study – Test Test Test
- Study – Test Test Test Test
The answer is number 4. Ideally make testing part of your practice, nothing to complicated though, low-key and very frequent. This will as before slow you down and many students will skip the tests they were asked to complete in favour of consuming more content, which is logical, just not the right thing to do for long term retention.
“Varying the context, examples, and problem type engages processes that can lead to a richer and more elaborated encoding of concepts and ideas, which can, in turn, support transfer of that learning to new settings.” Bjork
Having learners generate target material – This will not be liked by many, especially if you’re in full employment and time poor. And yet one of the most powerful learning techniques is to teach someone else, so it’s not that much of a surprise that preparing material to help teach yourself or another will help.
There are other techniques that Bjork suggests but they are a little more challenging, for example his research shows that making learning materials less well organised and more difficult to read is also effective. There is however a balance that needs to be struck between having a problem that when resolved will embed knowledge verses the time and frustration you might experience in going through the process.
Counterintuitive
Making something more difficult seems counterintuitive to me. I have spent much of my career trying to make the complicated seem easy. But this is not about making concepts difficult it’s the recognition that ultimately learning requires effort, and if that effort is directed towards a more effective way to learn, better long term learning will result.
If you want to hear more listen to this interview with Robert Bjork, it’s only just over 5m and well worth it.
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”.
A case study is a relatively high level form of assessment used to test a student’s ability to apply knowledge from a whole range of different subjects set against the backdrop of a real-world situation, a case study is a simulation.
This month’s blog is coming from Malaysia, I have been presenting at the ICAEW learning conference in KL. The only relevance of this, is that as with any lecture/presentation or lesson you have to put yourself in the shoes of your audience and ask, what do they want to get out of this, why are they giving up their valuable time and in many instances money to listen to what you have to say?
“They say he has grit. I wanted a man with grit.” So says Mattie Ross in the 1969 film True Grit staring John Wayne. But what exactly does the young Mattie Ross actually mean, what is grit?
university entrance exam is a major problem. The government has not been slow to react and for the first time anyone found cheating will face a possible seven year jail sentence. In Ruijin, east China’s Jiangxi Province, invigilators use instruments to scan students’ shoes before they entered the exam hall, while devices to block wireless signals are also used to reduce the opportunity to cheat.