Review the example of a subject heading search being run in Medline below, and decide if you think the following is true, or false:The search run for Exercise below would also search for Gymnastics and Running.

Question

BlackTom AI · Accepted Answer

In MeSH/Medline, the Explode feature determines whether a selected subject heading also retrieves all its narrower (child) terms. Since the screenshot shows "Exercise" selected but the Explode box is not checked, narrower headings such as Gymnastics and Running are not automatically included.

1) Relevant concepts:
- MeSH headings are hierarchical: a broad heading (Exercise) can have narrower child terms (Gymnastics, Running).
- "Explode" (often a checkbox) tells the database to include all child terms under the chosen heading in the search.
- Selecting only the parent heading without exploding retrieves records indexed exactly with that heading (or mapped entry terms), not the separate child headings.

2) Step-by-step reasoning:
- The Select Term(s) column shows only the checkbox for Exercise ticked.
- The Explode column (far right) contains empty boxes for Exercise and its child rows — none are checked.
- The list below shows Gymnastics and Running as distinct subordinate subject headings with their own hit counts, indicating they are separate MeSH terms.
- Because Explode is not enabled, the search will not automatically include those child headings.

3) (No numerical calculations required; counts in the screenshot simply show separate hit numbers for each term.)

4) Why the correct answer is correct:
- Without exploding, the database limits results to the selected heading only. Gymnastics and Running would only be retrieved if Explode were checked or those headings were selected explicitly.

5) Why the other option is incorrect:
- "True" would require that Explode had been used or that Gymnastics and Running were also selected; neither is the case in the screenshot.

Conclusion: The correct response is False — the search for Exercise as shown would not also search for Gymnastics and Running. This matches the provided answer.

Review the example of a subject heading search being run in Medline below, and decide if you think the following is true, or false:The search run for Exercise below would also search for Gymnastics and Running.判断题

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