Historian: During the Industrial Revolution, for the first time in history, the productivity of the economy grew at a faster rate than the population and thus dramatically improved living standards.
Conclusion (So)
No one should accept the economist’s explanation until historical evidence demonstrates that a change in values occurred prior to the Industrial Revolution.
Evidence
The economist theorizes that growth was made possible by the spread of values such as hard work and thrift. Successful explanations need to be based on facts.
Evaluate
This is a classic example of a rebuttal conclusion found after a pivot (here, the word "But"). The historian starts by mentioning a theorized explanation from an economist and then provides a rebuttal by saying no one should accept that explanation without evidence. This claim is our historian's opinion and is supported by the claim that successful explanations need to be based on facts.
Goal
Find the best available meaning match for no one should accept the economist’s explanation until historical evidence demonstrates that a change in values occurred prior to the Industrial Revolution.