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Psychologist: Early humans lived primarily in small bands. As a result, humans today are naturally adapted to group interactions. Hence, social connections and participation in the community are necessary to maintain good emotional health.
Which of the following is an assumption the psychologist's argument requires?
| Text from Passage | Analysis |
|---|---|
| Early humans lived primarily in small bands. |
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| As a result, humans today are naturally adapted to group interactions. |
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| Hence, social connections and participation in the community are necessary to maintain good emotional health. |
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"The psychologist starts with a historical fact about early human living arrangements, then explains how this shaped our evolution, and finally concludes what this means for our emotional well-being today."
"Social connections and community participation are necessary for good emotional health."
"The argument flows from evolutionary history → current human nature → requirements for emotional health. The psychologist assumes that our evolutionary adaptation to small groups directly translates into a modern requirement for social connections to maintain emotional wellness."
Assumption - We need to find what must be true for the psychologist's conclusion to hold. This means identifying gaps in reasoning that need to be filled for the argument to work.
The argument makes qualitative claims about human adaptation ('naturally adapted'), necessity claims ('necessary to maintain'), and causal connections between evolutionary history and current emotional health needs.
We'll look for ways the conclusion could fall apart even if we accept the given facts. The psychologist jumps from 'humans are adapted to group interactions' to 'social connections are necessary for emotional health.' We need to find what missing links would make this conclusion fail if they weren't true.
This talks about studies showing a correlation between social connections and better emotional health. However, the psychologist doesn't base the argument on empirical studies - the reasoning flows from evolutionary adaptation to necessity for emotional health. While supportive evidence would be nice, it's not what the argument requires to be logically sound. The psychologist's reasoning stands or falls on the logical connection between adaptation and health requirements, not on studies.
This compares early humans' emotional health to modern humans' emotional health. But the psychologist's argument doesn't depend on early humans being healthier - it only requires that our evolutionary past shaped our current needs. The argument is about what modern humans need (based on how we evolved), not about whether our ancestors were better off than us.
This statement is too strong and specific. It says community participation 'always' involves the exact same type of group interactions we're adapted to. The psychologist's argument doesn't require this level of precision - it just needs some meaningful connection between our group adaptations and modern social needs. The word 'always' makes this unnecessarily restrictive.
This is exactly what we need! The psychologist jumps from 'we're naturally adapted to group interactions' straight to 'social connections are necessary for emotional health.' This jump only works if we assume that our emotional health actually depends on living according to our natural adaptations. Without this assumption, being adapted to something wouldn't necessarily mean we need it for good health. This bridges the critical gap in the reasoning.
This is about what humans 'should' do - a prescriptive statement about how we ought to live. But the psychologist's argument is descriptive, explaining what is necessary for emotional health based on our evolutionary background. The conclusion is about necessity for health, not about moral obligations or what we should do.