A researcher realizes that he has been favoring the participants in Condition B by smiling at them more than he smiles at participants in Condition A. This is a threat to the experiment because it introduces:

Josh is teaching michael how to be an effective speaker. what two general hints for effective informative speaking should josh share?

Germany's black forest is being destroyed as a result of which environmental issue ?

Latonya was just hired as an engineer for an electric company. she will make a salary of $50,000 a year. how much of latonya's salary will be taxed at the 10 percent rate? how much of latonya's salary will be taxed at the 28 percent rate? latonya was just hired as an engineer for an electric company. she will make a salary of $50,000 a year. how much of latonya's salary will be taxed at the 10 percent rate? how much of latonya's salary will be taxed at the 28 percent rate?