Choose evidence that strengthens the argument: retrieval

Choose evidence that strengthens the argument: retrieval: a separate sample with explanations after your response.

Paper packet. Every task here also exists on screen, where it is checked automatically; answers written on paper are not assessed by Nydus. When you are back at a device, enter your answers there.

1. What you will learn

Choose evidence that strengthens the argument: retrieval: attempt the strengthen sample without worked examples. Use the target of each question to decide which information matters, and record your initial response before reading its explanation.

2. Practice

A fisheries laboratory uses a gentler tagging method and subsequently more tagged fish survive release. During the same period it also conducts releases in cooler water. A coordinator concludes that the intervention caused the improvement, arguing that reduced handling injury improves survival. Which finding most strengthens the coordinator's causal explanation?

fish released together into the same water survive more often after assignment to the gentler method
within releases at the same temperature, survival does not differ between tagging methods
Staff expected the intervention to help before it began.
The intervention was introduced after several months of discussion.
Some other organizations have adopted similar interventions.

3. Practice

A city library places topic summaries on catalogue pages and subsequently readers find relevant books sooner. During the same period it also reorganizes its subject headings. A coordinator concludes that the intervention caused the improvement, arguing that summaries let readers distinguish closely related books. Which finding most strengthens the coordinator's causal explanation?

with headings unchanged, readers randomly assigned summaries locate suitable books faster
searches become faster by the same amount when revised headings appear without summaries
Staff expected the intervention to help before it began.
The intervention was introduced after several months of discussion.
Some other organizations have adopted similar interventions.

4. Practice

An archaeological team uses a new sediment sieve and subsequently recovers more small beads per bucket. During the same period it also moves excavation to a richer deposit. A coordinator concludes that the intervention caused the improvement, arguing that smaller openings retain objects the old sieve loses. Which finding most strengthens the coordinator's causal explanation?

matched portions of a homogenized deposit yield more small beads with the new sieve
the difference disappears when sediment from the same deposit is divided between the sieves
Staff expected the intervention to help before it began.
The intervention was introduced after several months of discussion.
Some other organizations have adopted similar interventions.

5. Practice

A repair cooperative offers appointments instead of a walk-in queue and subsequently customers spend less time waiting on site. During the same period it also adds an extra technician. A coordinator concludes that the intervention caused the improvement, arguing that scheduled arrivals spread demand across the day. Which finding most strengthens the coordinator's causal explanation?

at equal staffing, appointment days have lower on-site waiting than comparable walk-in days
on-site waiting falls equally on walk-in days after staffing increases
Staff expected the intervention to help before it began.
The intervention was introduced after several months of discussion.
Some other organizations have adopted similar interventions.

6. What you can do now

Review the strengthen decisions in this mixed practice sample. Identify the particular restriction or evidence that changed your answer, and return to the corresponding worked lesson before trying a new case.