Mendoza et al. (2009) introduced a coin rotation task as a convenient test of motor dexterity. it involves timed completion of twenty 180° rotations of a nickel using the thumb, index, and middle fingers. research participants' results on the coin rotation task are compared with their results on a test of grip strength — a measure of another construct: global upper-extremity strength. the correlation between the coin rotation task and the grip strength task were found to be not statistically significant.
this comparison provides support for which type of measurement validity? group of answer choices
face validity
concurrent validity
discriminant validity
convergent validity

convergent validity

Convergent validity looks to refer to measure that whether what is being measured is up to standard.

The correlation between the coin rotation task and the grip strength task were measured against a standard that Mendoza et al has in mind already.

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.

answer; playboy;