Author Question: Practice effects are a major problem with . a. cross-sectional designs b. longitudinal designs ... (Read 179 times)

kamilo84

  • Sr. Member
  • ****
  • Posts: 495
Practice effects are a major problem with .
 
  a. cross-sectional designs
  b. longitudinal designs
  c. time-lag designs
  d. sequential designs

Question 2

If participants at the end of a longitudinal study tend to be those who were initially higher on some variable, then we have a case of
 
  a. negative selective survival.
  b. positive selective survival.
  c. elective selective survival.
  d. equally selective survival.



brittanywood

  • Sr. Member
  • ****
  • Posts: 355
Answer to Question 1

ANSWER: b

Answer to Question 2

ANSWER: b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

For a complete list of videos, visit our video library