A causal loop diagram of an Agile testing process shows a reinforcing loop 'more test coverage → fewer defects → higher quality → more test coverage' and a balancing loop 'more test coverage → longer test execution time → less time for new tests'. If the team observes that test coverage is growing but at a decreasing rate, which loop is likely dominating?

The reinforcing loop, because growth is still occurring

Both loops equally, because growth is linear

Neither loop, because the system is static

The balancing loop, because growth is slowing down

Certified Tester Agile Test Leadership at Scale

Domain 3Objective 5

Causal Loop Diagram CT-ATLAS Practice Questions (Page 4)

Part of the Continuous Improvement of Quality and Testing domain, which makes up ~17% of our current practice bank. ISTQB does not publish an official question count, but from its 120-minute exam (~50–80 total, ~9–14 in this domain), expect 2–3 from this objective — we provide 16 practice questions to prepare you well beyond it. (estimate)

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Questions 16–16

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A causal loop diagram of an Agile testing process shows a reinforcing loop 'more test coverage → fewer defects → higher quality → more test coverage' and a balancing loop 'more test coverage → longer test execution time → less time for new tests'. If the team observes that test coverage is growing but at a decreasing rate, which loop is likely dominating?
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Causal Loop Diagram CT-ATLAS Practice Questions (Page 4)

Questions 16–16

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