Sam, a used car salesman, doesn't know how many customers he will have to approach until someone buys a car, but he does know it is possible that the very next customer will buy a car. Sam's sales behaviour is reinforced according to which type of reinforcement schedule?
A) variable-ratio
B) fixed-ratio
C) fixed-interval
D) variable-interval
A) variable-ratio
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For both technological reasons and ethical reasons, it is not possible to manipulate people's genes and observe the kind of adult they become
Indicate whether the statement is true or false
The highest levels of positive feelings toward a parent who returns following an absence are felt by babies with ___________ attachment
a. disorganized/disoriented b. avoidant c. resistant d. secure
If sodium is prevented from passing through the neuronal membrane,
a. the neuron has just fired. c. both a & b b. the neuron is in the refractory period. d. none of these
The last time you visited your six-month-old niece, you popped your head over the padding on her crib every time that she kicked the mattress with her heel. She loved the game
It has been two weeks since your last visit; does she still remember the game? a. No, infants have hardly any memory skills. b. No, she is too young to remember something that long. c. Yes, she will most likely remember the game. d. It is very difficult to measure memory skills of infants.