This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A ____________ is a threat to internal validity when groups in an experiment are not equivalent at ... (Read 70 times)

maegan_martin

  • Hero Member
  • *****
  • Posts: 532
on: Aug 17, 2018
A ____________ is a threat to internal validity when groups in an experiment are not equivalent at the beginning of the experiment with regard to the dependent variable.
 
  a. beginning error
  b. selection error
  c. pretest error
  d. selection bias
  e. experimental bias

Question 2

The ________ technique is used particularly in ecological studies in order to estimate the size of unknown populations.
 
  Fill in the blank(s) with correct word


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

joneynes

  • Sr. Member
  • ****
  • Posts: 376
Reply #1 on: Aug 17, 2018
Answer to Question 1

D

Answer to Question 2

Mark recapture or tag and release


maegan_martin

  • Member
  • Posts: 532
Reply 2 on: Aug 17, 2018
Excellent

Alyson.hiatt@yahoo.com

  • Member
  • Posts: 354
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Internal view of the heart illustrating the heart chambers, heart layers, and major blood vessels as Internal view of the heart illustrating the heart chambers, heart layers, and major blood vessels as
Phylogenetic tree based on the distribution of 120 alleles in 42 populations from around the world, Phylogenetic tree based on the distribution of 120 alleles in 42 populations from around the world,
Except for interaction within families, age groups in Western culture are usually kept fairly ... Except for interaction within families, age groups in Western culture are usually kept fairly ...
Functional Groups of Carbon Functional Groups of Carbon
Internal Renal Anatomy Internal Renal Anatomy
The Lederberg–Zinder experiment using Salmonella The Lederberg–Zinder experiment using Salmonella
Video: Ultrasound of a Fetus (Sonogram)

For a complete list of videos, visit our video library