« previous next »

Author Question: A researcher who is examining the effects of temperature and humidity on the eating behavior of rats ... (Read 50 times)

frankwu

  • Hero Member
  • *****
  • Posts: 549
on: Jun 19, 2018
A researcher who is examining the effects of temperature and humidity on the eating behavior of rats uses a factorial experiment comparing three different temperatures (70, 80, and 90) and two humidity conditions (low and high). The experiment has ____ level(s) for the temperature factor and a total of ____ treatment conditions.
 
  a. one; three
  b. three; six
 c. six; six
 d. three; two

Question 2

Wanda is conducting a study of social behaviors among children who are considered to be at high risk because one or both of their parents is in prison. Two observers rate the children's social skills, perform an intervention that consists of structured socialization opportunities, and then rate the children's social skills again. Unfortunately, neither of her original observers are available after the intervention, so she has to use two new observers. As a result, Wanda has a(n) ____ threat.
 
  a. history
 b. mortality
 c. instrumentation
  d. regression


katkat_flores

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jun 19, 2018
Answer to Question 1

b

Answer to Question 2

c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Shown eating. Cougars are ambush predators, feeding mostly on deer and other mammals. Shown eating. Cougars are ambush predators, feeding mostly on deer and other mammals.
Contrasting (a) polygenic and (b) pleiotropic effects. Contrasting (a) polygenic and (b) pleiotropic effects.
Neural Circuitry in Defensive Behavior and Predation Neural Circuitry in Defensive Behavior and Predation
Stimulant Effects on the Brain Stimulant Effects on the Brain
Drug Effects Drug Effects
Variations in Ocean Water Temperature With Depth Variations in Ocean Water Temperature With Depth
Video: Replication of DNA and Chromosomes/ How do cells replicate their DNA? (Animation) no Audio

For a complete list of videos, visit our video library