Author Question: Practice effects are a major problem with . a. cross-sectional designs b. longitudinal designs ... (Read 126 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?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

For a complete list of videos, visit our video library