Question

IQ at Ellis Island: In 1917, a group of American psychologists administered the Binet-Simon IQ test to Europeans immigrating to the U.S. through Ellis Island. They wrote a widely-distributed report on their findings. A table from that report is displayed above.

Here’s a quote from the report’s summary:

“One can hardly escape the conviction that the intelligence of the average ‘third class’ immigrant is low, perhaps of moron grade.”

What evidence from the table lends support to the author’s conclusion?

Answer 1

[AI-generated answer — Bot GPT 3.5]

The evidence from the table that supports the author's conclusion is the fact that the average IQ scores for third class immigrants were significantly lower than those of the general American population. The average IQ score for third class immigrants was 79, while the average for the general American population was 100. This difference in IQ scores suggests that the intelligence levels of third class immigrants were indeed lower, potentially at a moron grade level as stated in the report.