The answer is Before Christ (aka BC) because that is not considered one of the major time periods in human history, instead, it’s a way to measure time.
The Flynn effect refers to the fact that IQ scores have increased from generation to generation in modernized countries.
<h3>What is the Flynn effect?</h3>
The Flynn effect is a term used to describe a secular rise in population IQ that was seen over the course of the 20th century. The changes happened quickly, with an average IQ point increase of three every decade for assessed intellect. The rise appeared to defy the old theory that IQs were dropping because of so-called dysgenic fertility, which is the negative relationship between IQ and fertility.
There has been concern that the Flynn effect was a transitory phenomenon reflecting an IQ boost from environmental factors that temporarily concealed an underlying dysgenic trend as the Flynn effect has recently decreased and reversed in various Western countries.
Learn more about Flynn effect here:
brainly.com/question/11772792
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Answer:
which one? choose one question
#1) what is this vocalization called?
Answer: Babbling. A stage in child development and a state in language acquisition during which an infant appears to be experimenting with uttering articulate sounds, but does not yet produce any recognizable words. Babbling begins shortly after birth and progresses through several stages as the infant's repertoire of sounds expands and vocalizations become more speech-like.