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

Author Question: Which of the following is the best formulated hypothesis? a. A psychologist wonders if caffeine ... (Read 42 times)

Chloeellawright

  • Hero Member
  • *****
  • Posts: 588
on: Jun 20, 2018
Which of the following is the best formulated hypothesis?
 
  a. A psychologist wonders if caffeine affects attention.
  b. Does caffeine affect attention?
  c. If caffeine is ingested, attention will be enhanced.
  d. Caffeine and attention: a relationship?

Question 2

Professor James uses a system that requires a subject to press a button as soon as they see a light blink. He is measuring their reaction time. Unfortunately, his equipment is not working properly and every reaction time recorded randomly fluctuates by plus or minus 10. You would conclude that the readings obtained with the equipment are:
 
  a. not reliable and not valid.
  b. reliable but not valid.
  c. not reliable but valid.
  d. reliable and valid.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fraziera112

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jun 20, 2018
Answer to Question 1

C

Answer to Question 2

A


Chloeellawright

  • Member
  • Posts: 588
Reply 2 on: Jun 20, 2018
Thanks for the timely response, appreciate it

nguyenhoanhat

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

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?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

A hypothesis that suggests an explanation of the function of the gene that is defective in patients A hypothesis that suggests an explanation of the function of the gene that is defective in patients
Jacob, Monod, and Pardee's hypothesis for the function of the lacI region Jacob, Monod, and Pardee's hypothesis for the function of the lacI region
The deep-sea vent hypothesis for the origin of life The deep-sea vent hypothesis for the origin of life
Consider the following hypothesis problem. n = 30 H0: 2 = 500 s2 = 625 Ha: 2 500 The test ... Consider the following hypothesis problem. n = 30 H0: 2 = 500 s2 = 625 Ha: 2 500 The test ...
Calico cat illustrates the Lyon hypothesis Calico cat illustrates the Lyon hypothesis
One hypothesis for the evolution of the eukaryotes One hypothesis for the evolution of the eukaryotes
Video: Secondary and tertiary levels of protein structure Animation

For a complete list of videos, visit our video library