Which of the following are reasons for performing experiments?

A. to determine if a particular treatment has a desired effect on the response variable
B. to establish a cause-and-effect relationship between the treatment and the response
C. to identify the effects of a lurking variable on the response variable
D. to overcome ethical difficulties that observational studies could potentially present
E. to measure variables of interest without influencing the responses

The correct answer is letter C

Explanation: Conducting scientific experiments is the ideal opportunity to identify the effects of a lurking variable on the response variable. Not all experiments all approved, sometimes performing the experiments are the only way to find out the effects.

elizabeth loftus conducted a study to observe the reliability of eyewitnesses during the 1970s. their baseline was to define how accurate are the recollections of eyewitnesses.

her studies do not support the use of eyewitness. loftus mentions in her work that we are not required to recall some experiences, meaning that rarely an individual eyewitness testimony is trustworthy. a good example is presented in her work, where all individuals watched a video and were than asked "about how fast were the cars going when they hit/smash? ". the testimonies changed based on the word she used to make the question (hit or smash), proving the fragility.

answer; /// i believe its; // being treated lovingly and predictably by caregivers and learning to trust;