To study the effect of different types of stimuli on memory recall, Zhong subjects participants divided into two equivalent groups to either an auditory or a visual presentation of a poem. After the presentation, the participants are asked to answer several questions about the poem. Which type of experimental design has Zhong employed?

Svetlana wants to know if a new sports drink improves physical performance. The number of push-ups each participant can complete in 1 minute is recorded first. The participants are then given 8 ounces of the sports drink, and the number of push-ups completed in 1 minute is recorded again. Svetlana finds that the number of push-ups completed is less after consuming the new sports drink. This finding is likely the result of a________ effect.

In a survey, participants were asked if they agree with the statement “I like spending my free time with other people.” They were also asked if they agree with the statement “I enjoy being alone during my free time.” This type of questioning helps in identifying

A study participant has a difficult time answering the question “Should parents increase the likelihood of desirable behaviors in their children by using reinforcement and punishment?” because it is a(n)________ question.

What is the solution to the following system of equations? 4x – 2y + 2z = 8 -x + 3y – z = 5 2x – y + z = 4 Write your answer in the format (#, #, #) if there is a solution and `no solution` if it cannot be solved. (space between `,` and `#`)

Using a 3×3 system, determine three numbers that satisfy the following conditions:• the sum of the three numbers is 2.• the sum of the first number, 5 times the second number, and 5 times the third number is -10.• the sum of the first number, double the second number, and triple the third number is -3.   Sort the answer and give the answer in the format (x, y, z) where x

What is the graphical representation of a 2d system with no solution?

What is the solution to the following system of equations? 3x – y + 4z = -5 6x – y + 3z = -9 5x + 5y – 5z = 20 Write your answer in the format (#, #, #) if there is a solution and `no solution` if it cannot be solved. (space between `,` and `#`)

Caleb placed $5,500 in three investments that pay an annual interest of 4%, 5% and 7%. He placed twice as much money in the 7% investment as he did in the 4% investment. His total interest for the year is $320. Using a 3×3 system, determine the amount of money Caleb placed in each of the three investments. Given x = the investment at 4%, y = the investment at 5%, and z = the investment at 7%, give the answer in the format (x, y, z) if there is a solution and `no solution` if it cannot be solved. (space between `,` and `#`)  

What is the solution to the following system of equations? y=3x+6 −2x+4y=4 Write your answer in the format (#, #) if there is a solution and `no solution` if it cannot be solved. (space between `,` and `#`)