A researcher taking a dynamic-systems approach to motor development would be MOST likely to examine the impact of on the development of crawling.

multiple variables

Explanation:

Multiple variables entails that there may be more than one dependent variable and/or independent variable.

Such always comes to play out if you are conducting an experiment with multiple stages or sets of procedures.

In such type of experiments, there may be more than one set of measurements with different variables.

jacksonian era promoted strength of the presidency and executive branch at the expense of congress. it also sought to broaden the public's participation in government. the jacksonian's demanded to have elected judges, instead of appointed judges, and rewrote many state constitutions to reflect the new values. hope this ! if you did find it would you mind giving me brainliest? : )