Individuals must be told the associated risks and agree to participate in any psychological research study. This meets the standard of O harm
O informed consent
O deception
O confidentiality
O animal research

Many psychologists conduct research involving animal subjects. Often, these researchers use rodents ([link]) or birds as the subjects of their experiments—the APA estimates that 90% of all animal research in psychology uses these species (American Psychological Association, n.d.). Because many basic processes in animals are sufficiently similar to those in humans, these animals are acceptable substitutes for research that would be considered unethical in human participants.

Explanation:

the correct answer is b

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.