« previous next »

Author Question: In an experiment on the effects of massed versus distributed practice on learning, introductory ... (Read 79 times)

jparksx

  • Hero Member
  • *****
  • Posts: 570
on: Jul 13, 2018
In an experiment on the effects of massed versus distributed practice on learning, introductory psychology students who volunteered for extra credit were randomly assigned to one of two groups.
 
  Both groups were to practice a perceptual-motor task five times for 10 minutes each. Group 1 did all five 10-minute practice sessions in one evening while group 2 was asked to do one 10-minute practice session a night for five consecutive nights. All of the participants in Group 1 completed the experiment, but only 30 of the participants in Group 2 showed up for all five nights. This study is an example of confounding by
   
 a. differential attrition.
  b. selection bias.
  c. history.
  d. demand characteristics.

Question 2

A metacrawler or meta search engine works by
 
  a. remembering your search history to allow more efficient searches in the future.
  b. submitting your search query to several different search engines and including all of the results.
  c. allowing you to research multiple topics in a single search.
  d. finding and storing new information related to your topic for days after your original search


momo1250

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 13, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

The effects of elevated atmospheric CO2 on insect herbivores. The effects of elevated atmospheric CO2 on insect herbivores.
Effects of Living in Total Darkness on Monoaminergic Systems Effects of Living in Total Darkness on Monoaminergic Systems
Aldose versus ketose Aldose versus ketose
Street Drugs and Their Potential Effects During Pregnancy Street Drugs and Their Potential Effects During Pregnancy
Pharmacologic effects and indications of adrenergic antagonists: (a) blockade of alpha1 receptors; ... Pharmacologic effects and indications of adrenergic antagonists: (a) blockade of alpha1 receptors; ...
Effects of septal defects: (A) normal shunt; no cyanosis; (B) increased pressure in right ventricle; ... Effects of septal defects: (A) normal shunt; no cyanosis; (B) increased pressure in right ventricle; ...
Video: Blood Pressure Measurement

For a complete list of videos, visit our video library