A researcher is investigating the effects of caffeine consumption on student writing performance. Because the researcher will evaluate both the speed of assignment completion and the number of grammatical errors, she will need to include more than one variable in her study

The answer is dependent variable.

Explanation:

In experimental research, an independent variable is predicted to affect one or more dependent variables. In this example, the caffeine intake is expected to change the participants' writing speed and/or accuracy. This means the experiment includes two dependent variables.

An easy way to remember the difference is to say: independent causes change in dependent.

- "sack of constantinople, (april 1204). the diversion of the fourth crusade from the holy land to attack, capture, and pillage the byzantine city of constantinople divided and dissipated the efforts of the christians to maintain the war against the muslims. the fourth crusade was corrupted from its purpose early on."

- "the crusades were a series of religious wars undertaken by the latin church. the first crusade arose after a call to arms in 1095 sermons by pope urban ii. the first crusade unleashed a wave of impassioned, pious catholic fury, which was of constantinople, the capital of the christian-controlled byzantine empire."

< 3

its d. you give me brainliest