Why paragraphs give a more honest score
Random-word tests use lowercase words and no punctuation, so they flatter your speed. Real writing has capital letters that need the Shift key, commas, full stops and the odd number. A paragraph test measures the typing you actually do in emails and essays, which is why most employment tests use one.
Expect your paragraph score to be roughly 5 to 15 percent lower than your random-word score. That gap is normal. If it is much bigger, practise Shift and punctuation with the punctuation drill.
The paragraphs
There are 50 short paragraphs on five topics: nature, the kitchen, science, travel and sport. Each is 43 to 50 words of plain, neutral prose written for this site, so nothing is copyrighted and nothing is memorised from elsewhere. Choose one from the list, or leave it on random for a fresh one each time.