A scientist gives a rat a food pellet every time it presses a bar. This is an example of ______.
a. positive reinforcement c. classical conditioning
b. negative reinforcement d. aversive conditioning
Question 2
In a study on psychotherapy techniques, subjects are randomly assigned to one of two
groups. One group receives a specific type of therapy.
The other group receives a
credible treatment which has elements common to all therapies but no specific ingredients
of the therapy received by the first group. This generic placebo therapy received by the
second group is called a(n) _______ placebo.
a. response c. blind
b. inert d. attention
Primates exhibit prolonged life histories, spending more time in each stage of life than most other
Earth scientists have devised a scheme to divide the planet’s natural history into distinct time ...
The environmental policy changes over time
Food policy can drive the food industry
Physics: Power, Energy and Time
Over time, cells acquire mutations. Two independently acquired mutations in the same cell may be suf