Unit 4 Data and trends
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Extended reading B2
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Review unit reading Read for purpose, evidence, and inference.
Reading drill

A faster service, or a different mix of work?

A weekly report at a training office showed that the team had completed ninety file checks, compared with seventy-five the previous week. The headline looked encouraging, and one draft described a fifteen per cent improvement. Before the report was circulated, an analyst pointed out that the increase was fifteen checks, or twenty per cent of the earlier total. Correcting the percentage was straightforward. Deciding what the change meant for performance required more thought and some information that the initial table did not contain.

The office had recorded the same number of opening hours in both weeks, but opening hours were not the same as staff hours spent checking files. During the first week, two experienced colleagues had spent much of their time training new staff. During the second, more files were routine renewals rather than complex applications. Either difference could affect the number completed without showing that an individual had become more efficient. The analyst asked for workload categories and time records before suggesting a fair comparison.

Some managers felt that these qualifications made a simple report difficult to read. The analyst proposed keeping the main figure while adding a brief explanation of its limits. Readers could still see that more checks had been completed. They would also know why the figure alone could not establish a rise in productivity or a fall in quality. A separate sample review would examine accuracy, since fast completion and reliable work were related goals rather than interchangeable measures.

For the next month, the team agreed to present volumes, staff hours and broad task categories together. It would compare similar work where possible and identify any remaining gaps in the data. The intention was not to postpone every decision until perfect information existed. It was to make recommendations proportionate to the evidence available. A temporary adjustment might be reasonable, but a permanent staffing change would require a stronger basis than a single favourable weekly total.

Drill 20

Which two goals does paragraph three say cannot be used as interchangeable measures?

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