
IQ test performance differences between racial groups have decreased over time
Image: Charles T. Scowen (fl. 1873-1885), Public domain, via Wikimedia Commons
IQ test performance differences between racial groups have decreased over time
Genetics are not the primary factor in explaining differences in IQ test performance between racial groups. Environmental influences are more significant in shaping these outcomes.
Example
In the early 20th century, IQ test scores showed significant differences between racial groups in the United States. However, as time passed, these differences have steadily decreased, indicating the influence of environmental factors.
Understanding the decreasing trend in IQ test score differences between racial groups helps debunk pseudoscientific claims of inherent racial differences in intelligence.
Bias vs variance: high bias = underfitting, high variance = overfitting
High bias = underfitting, high variance = overfitting
the back-door criterion identifies: sufficient adjustment sets for causal estimation
The back-door criterion identifies sufficient adjustment sets for causal estimation
an instrumental variable does: isolates causal effect when you can't randomize
Instrumental variables isolate causal effects in non-randomized studies
log-loss / cross-entropy loss penalizes: confident wrong predictions more heavily
Log-loss penalizes confident incorrect predictions more heavily
BLEU vs ROUGE: BLEU measures precision of n-grams, ROUGE measures recall
BLEU measures precision of n-grams, ROUGE measures recall
word error rate (WER) measures: edit distance between predicted and reference transcriptions
Word Error Rate (WER) measures the edit distance between predicted and reference transcriptions
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