How much of the increase in recent COVID-19 positive cases is due to increases in testing? Lots of claims being made, but let's look at the data! It varies a lot by state

I will use a 7-day positive tests and total tests, and look over a two-week period

Source: @covid19tracking

In California, positive tests are up 79% the past 7 days compared week ended 6/10. But total tests are only up 45%. So mostly due to more testing but not completely.

Florida is a different story. Positive tests are up 206%, but FL is testing slightly LESS than 2 weeks ago (-8%)

In Texas, positive tests are up 158%, but total tests are only up 69%. So mostly not due to more testing, but partially.

In Arkansas it's almost all due to more testing: positive tests up 64%, total tests up 52%. But a caution here: current hospitalizations are also up 48% in AR

A few other states I looked at:

Arizona
Positive tests +150%
Total tests +50%

South Carolina
Positive tests +136%
Total tests +54%

Finally, some states are doing well. New York is a good example (despite many missteps the past 3 months). Positive tests are DOWN 25% in the past 2 weeks, while overall testing has remained constant. Test positivity rate is just 1%. That's where every state would like to be!