Answer:
artifacts
Explanation:
Anything artificially done in order to improve human cognition will be called a cognitive artifact. They help us improve our performance.
Earl Hunt means that modern societies will have broadened use of cognitive artifacts:
The physical instruments needed or forms of reasoning that make our capacity to think better.
They will include writing systems, printing press, writing editors, computers, digital media,etc
Together they make everyday life richer, and people from developed nations will have a broader intelligence given the higher access to these artifacts.
To justify this the intelligence tests will reflect a high score.
The score is directly related to the socioeconomic level , and this pattern can be observed internationally, where higher achievement is measured for wealthy nations.
The cognitive skills can be always improved with the better use of the artifacts.
