Author Question: Which of the following is a clear example of an interaction? a. rats given a drug in the morning ... (Read 24 times)

Collmarie

  • Hero Member
  • *****
  • Posts: 569
Which of the following is a clear example of an interaction?
 
  a. rats given a drug in the morning are more active than rats given placebo and rats given placebo in the evening are more active than rats given drug.
  b. larger print is read faster in bright light than smaller print and smaller print is read slower in dim light than larger print.
  c. compared to drinking non-alcoholic beverages, drinking alcohol makes men more aggressive in a hot room and drinking alcohol also makes men more aggressive in a cool room.
  d. performance on a proofreading task is impaired when others are present rather than alone. The effect is the same whether the others are men or women.

Question 2

Sally selects classrooms of first graders to study the effects of teaching styles on math
   achievement. This is an example of ___________________ _____.
 
  a) stratified random sampling
  b) cluster sampling
  c) proportional sampling
  d) sampling error



moormoney

  • Sr. Member
  • ****
  • Posts: 326
Answer to Question 1

A

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

For a complete list of videos, visit our video library