A medieval proverb notes that "a burnt child dreads the fire." In operant conditioning, the burning would be an example of a a. primary reinforcer. b. negative reinforcer. c. punisher. d. positive reinforcer.

Fraternal twins result when
a. a single egg is fertilized by a single sperm and then splits.
b. a single egg is fertilized by two sperm and then splits.
c. two eggs are fertilized by two sperm.
d. two eggs are fertilized by a single sperm.

Which of the following is NOT one of the reasons that have been proposed to explain why we need sleep? a. Sleep has survival value. b. Sleep helps us recuperate. c. Sleep rests the eyes. d. Sleep plays a role in the growth process.

The partial reinforcement schedule that reinforces a response after unpredictable time periods is a ___________ - __________ schedule.

A restaurant is running a special deal. After you buy four meals at full price, your fifth meal will be free. This is an example of a __________ schedule of reinforcement. a. fixed-ratio b. variable-ratio c. fixed-interval d. variable-interval

Reinforcing a desired response only some of the times it occurs is called ___________ reinforcement.

How could your psychology instructor use negative reinforcement to encourage your attentive behaviour during class?

Learning is defined as "the process of acquiring through experience new and relatively enduring _________ or _________ .

Schizophrenia has been linked to brain and neurotransmitter abnormalities as well as genetics. Explain research findings related to two features of brain anatomy, one neurotransmitter, and one genetic factor that could cause someone to develop schizophrenia.

If the reserve ratio is ¼ and the central bank increases the quantity of reserves in the banking system by $120, the money supply increases by a.$90. b. $150. c.$160. d. $480.

Show that a set

$$G \subseteq \mathbb { R }$$

is open if and only if it does not contain any of its boundary points.

Some of the best vacuum cleaners are only sold door-to-door. The salespeople demonstrate the cleaning ability of the appliance in people's homes to encoupp them to make the purchase. Michael sells vacuums cleaners door-to-door. He earns a base salary plus a commission on each sale. His weekly earnings depeel on the number of vacuum cleaners he sells as shown in the table below.

$$\begin{array}{|l|r|r|r|r|} \hline {\text { Michael's Earnings }} \\ \begin{array}{|l|r|r|r|} \hline \text { Number of Vacuum Cleaners } \\ \text { Sold in a Week } \end{array} & 2 & 4 & 6 & 8 \\ \hline \text { Weekly Earnings (in dollars) } & 600 & 960 & 1,320 & 1,680 \\ \hline \end{array}$$

a. Verify that weekly earnings are a linear function of the number of vacuun cleaners sold.

b. Determine the rate of change in earnings as sales increase. What part of Michael's pay does this figure represent?

c. What would Michael's earnings be for a week in which he sold 0 vacuume

d. Use your answers to Parts b and $\mathrm{c}$ to write a rule that shows how Michach weekly earnings $E$ can be calculated from the number of vacuum cleanes sold in a week $S$.

e. Company recruiters claim that salespeople sell as many as 15 vacuum cleaners in a week. What are the weekly earnings for selling 15 vacuum cleaners?

For this exercise, the domains were determined in the previous exercises. Use a graph to (a) find the range, (b) give the largest open interval over which the function is increasing, (c) give the largest open interval over which the function is decreasing, and (d) solve the equation $f(x)=0$ by observing the graph.

$$f(x)=\sqrt[3]{8 x-24}$$

Using your notes from the graphic organizer that you created at the beginning of this lesson, explain why psychological needs make people more overweight than psychological needs.