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

Author Question: The same test was administered twice to two groups of students. The students were similar in ability ... (Read 101 times)

jilianpiloj

  • Hero Member
  • *****
  • Posts: 521
on: Jun 20, 2018
The same test was administered twice to two groups of students. The students were similar in ability and achievement. Group I was administered the test on two consecutive days. Group II was administered the test at the beginning and the end of the month. Which groups' test-retest scores will have a lower correlation?
 
  a. I
  b. II
  c. We cannot infer from the information given.

Question 2

The correlation coefficient of 0.95 between mathematics and physics scores of a group of students means that high performance in mathematics causes high performance in physics.
 
  a. True
  b. False


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

underwood14

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jun 20, 2018
Answer to Question 1

b

Answer to Question 2

b


jilianpiloj

  • Member
  • Posts: 521
Reply 2 on: Jun 20, 2018
Gracias!

sailorcrescent

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Cover/Uncover Test Cover/Uncover Test
Using the voltmeter leads from a starting and charging test unit to measure the voltage drop ... Using the voltmeter leads from a starting and charging test unit to measure the voltage drop ...
Cards Used in a Formal Test of Problem Solving Cards Used in a Formal Test of Problem Solving
Controlled Scientific Experiments Scientists use experimental research to test hypotheses Controlled Scientific Experiments Scientists use experimental research to test hypotheses
Blood pressure test Blood pressure test
Finger-to-nose test Finger-to-nose test
Video: hGH (protein synthesis, growth and development)

For a complete list of videos, visit our video library