Don’t waste your reader’s time. There is a difference
between reading from the printed page and reading from a screen. Reading from
paper makes use of reflected light, whereas the screen is lit from behind. This
makes it more difficult to read on screen, particularly when large amounts of
text are involved, and where the user is required to read for long period of
time. It is almost always a mistake to simply transfer text from the printed
page or workbook to the screen, without taking into account this fundamental
difference.
In all reading, we do not simply scan letter-by-letter, word
by word, sentence by sentence. We scan, skip and look for anchors. When we read
text on screens, these behaviours become more extreme. More than
this, in online learning, we need to be aware of chunking, meaning, order, cues
and retention. The art of writing text for online learning is a skill,
especially when that text will be read across a whole range of devices and
different screen sizes. Ten quick suggestions:
1. Cut until it
bleeds
Several
pieces of research point towards overlong text as a destructive force in
learning. Mayer, Bove, Bryman, Mars and Tapangco (1986) showed that too much
text can reduce learning by up to 50%. Edit out unnecessary words, use
shorter words, break down long sentences. Give yourself a maximum word length
and rewrite to within that limit. Cut it til it bleeds - then cut it again.
2. Chunk text
When we read to learn, text must be chunked to increase
retention. This is a well researched area. Chunking text means more paragraphs.
Break down the text into more paragraphs than you would on the written page.
Ebbinghaus through to Miller and many other psychologists of learning showed that chunking is a proven technique to increase retention.
3. More structure and
meaningful headings
Bruner
researched how structure (content must be structured so that it can be
grasped by the learner), sequence (material must be presented
in the most effective sequences) and
generation (encourage extrapolation,
manipulation and a filling in the gaps, just beyond the learners existing
knowledge) all aid learning. Write to these rules. Like this blog post, screen text benefits from more
headings. These headings act as structural cues for meaning, understanding and
encoding, all of which aid retention. Don’t use headings like ‘Introduction’
‘Section 3’ and so on. Make headings short, meaningful cues. Start with a
question, capture main learning point in the heading.
4. Highlight key words
Highlighting ‘cue’ words within text in bold or italics.
These act as cues for retention but don’t overuse, one or two at most per
paragraph. Tulving explored cues in learning showing that they are vital in the
process of encoding, storage and recall, and therefore retention. Another useful technique for emphasis is to pull out quotes or key sentences. You often see this in good magazine articles, quotes and main points pulled out in a separate or much larger font, even placed separately at the side of the text. This is a useful learning device that can be used to reinforce the main learning point. Again, these act as cues, which Tulving thought were essential in memory and retention.
5. Don't 'centre' text
It is far harder to read centred text, as you lose the left adjusted visual cueing, and people tend to read the lines, not the sentences - so don't do it.
Graphic artists may want your text to 'look good' but that it not the point in learning. Above all, it must be readable. This means left justifying the text.
6. Use stab/bullet points
Long paragraphs, that are in fact lists, work better on
screens as stab points. These also increase encoding and retention. In one
study, Mayer, et al. (1996) presented 600 pieces of scientific learning and
found that briefer versions, which were concise, coherent and co-ordinated,
resulted in far more effective learning. They are precise in their
recommendations, ‘There is a clear
pattern in which the more words added to the core verbal explanation, the more
poorly the student does in producing the core explanative idea units. These
results are consistent with the idea that the additional words overload verbal
working memory, drawing limited attentional and comprehension resources away
from the core verbal explanation.’
7. Personalise
Formal and
conversational styles (using terms such as I, me, my, you, your and we) of text
have been compared by Moreno and Mayer (2000) showing that the conversational
style resulted in 20-46% better learning. Nass and Reeves also produced 35 studies showing that learners see technology as a human and therefore needs dialogue on a personal level.
8. Keep text close to image.
Mayer
(1989), Mayer Steinhoff Bower (1995) and Moreno and Mayer (1999) in five
separate studies compared graphics with text close to the graphics, and
graphics with text below the graphics, at the foot of the screen. In all five
studies, learners who used the co-located text and graphics improved their
problem solving by between 43-89%. Similar results have been found by Chandler
and Sweller (1991), Pass and Van Merrienboer, (1994). Making the learner’s eye
jump from one part of the screen to another is disruptive and reduces the
effectiveness of the learning.
9. Don’t do audio and text on screen
Words, in both text and accompanying audio narration, can hurt learning. This is interesting, as it is often assumed that one needs both to cover accessibility issues. Clark and Mayer (2003) argue that ‘audio or text on their own’ are better than ‘text and audio together’. This is confirmed by another study by Kalyuga, Chandler and Sweller (1999) where the group with audio scored 64% better than the group with both text and audio. They claim that one or other is redundant and will overload the visual and aural channels.
10. Don’t use unnecessary graphics
A review of
studies around this concept, known as the redundancy effect, by Sweller
et al. (1998) cites a list of research studies that all point to the damage done
to learning when redundant material interferes with the efficacy of the
learning. For example; they illustrate a point about leaving out extraneous or
distracting graphics in media with an experiment, conducted by Harp and Mayer
(1997), in which students were given a text to read on lightning strikes.
Students who read the passage accompanied by elaborate colour photos with
additional captions - as opposed to the text with simple graphics - showed 73%
less retention of knowledge and 52% fewer solutions on a transfer test.
Conclusion
The
problem, in many online learning courses and resources, is not that they are in text but
that there is too much text and that it is badly written and presented. A good editor can often take subject matter text, book text
or initial documents and use these techniques to make the text screen-ready.
When I hired interactive designers, I gave them all literacy skill tests and
was keen to see evidence of their ability to write well and edit. In many ways
this is a primary skill with screen friendly writing something that had to be
acquired. A good editor will
reduce text like a good sauce and the learner invariably benefits in terms of
understanding, encoding, retention and perseverance.
No comments:
Post a Comment