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In all writing, the basic selection/omission
process necessarily omits more than it includes. Ad writers normally
omit unrelated information and unneeded items.
Most ads are true, but incomplete.
Problems occur when ads omit relevant information
which may harm the consumer. Ads need not present all contrary opinions
or available alternatives, but should not conceal actual dangers.
We should expect that persuaders are likely to downplay the "bad,"
to omit any disadvantages.
Omissions about some dangerous products (unsafe or unhealthy) have
already prompted a few consumer "disclosure laws"
in the USA requiring warnings, labels, and regulations.
Many other omissions are less serious and go unregulated,
but are still detrimental. For example, some items are inefficient,
uneconomical, unneeded, soon outdated or discontinued, have non-standard
parts or limited use.
Omission is very hard to detect because literally
there's nothing there.
How do you know what has
been withheld, concealed, or hidden?
Omissions often can be discovered by looking for potentially bad
effects and their concealed causes, by systematically
using Aristotle's 4-part division of causality. For example, ads
can omit the "bad" about:
(1) the efficient
cause - the do-er of the action
-- the people involved, the maker, the workers, the manufacturer
(such as mismanagement, inexperienced workers, unsanitary cooks,
unbonded repairers, unaccredited schools, or insolvency.)
(2) the material cause, the
materials involved -- such as materials being unsafe, unhealthy,
poisonous, flammable, fragile, shoddy, substitute, artificial, or
adulterated
(3) the formal cause
-- the form, design, plan, or procedures involved
-- such as errors or flaws which make it unsafe, unhealthy,
inconvenient, uncomfortable, unwieldy, or difficult to use.
(4) the final cause
-- the purpose or intended use --such as
inherent risks (any blade, flame, or electricity); intrinsic
problems (energy-wasting, time-wasting, inefficient, too
costly)which may cause unforeseen side-effects (such
as social disruption or environmental damage).
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In all writing, the basic selection/omission
process necessarily omits more than it includes. All writers
make assumptions about their audiences and normally omit unrelated
information and unneeded items.
Omissions relate both to your concept of the subject
matter and to your analysis of the audience's knowledge.
Do any terms need explaining? Are any parts omitted? Any steps
in a sequence skipped? Any context omitted?
Omissions can be accidental or deliberate.
Accidentally, you can forget something, or neglect to include
information, because of your own unawareness of its need or usefulness.
Deliberately, you can omit irrelevant information or suppress
relevant material.
Every writer makes decisions to omit irrelevant
items. For example, when you do research, usually you gather much
more information than you can use. Your task is to reduce this
clutter, omit the repetitious and redundant, the trivial and the
unrelated, so as to focus more sharply on your important points.
Relevant information varies in
different kinds of expository writing. Relevant omissions are
most obvious in instructional writing with its goals of clarity,
specificity, and usefulness.
You can easily recognize the problem of omitting
directions and warnings. But, it's more difficult to identify
how much context is relevant or necessary (for example, in history
and biography) to create the more general sense of understanding.
Writers have difficult decisions as to what to
include and to omit when writing about causes and effects, or
other complex interrelated issues.
Checklists
are useful and common reminders to avoid accidental omissions.
Many situations can use generic checklists (e.g. Who, What,
When, Where, Why, How), and many textbooks provide more
specialized lists for research papers.
However, in most cases, it's best to check your
finished work against your outline or an itemized listing of your
"purpose" and "key points." Have you covered
everything you intended?
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