As hunters and gatherers before they discovered farming.
Answer:
<em>The 1920s was a decade of increasing conveniences for the middle class. New products made household chores easier and led to more leisure time. Products previously too expensive became affordable. New forms of financing allowed every family to spend beyond their current means.</em>
Explanation:
<h3>I hope this helps!</h3>
Answer: d) Discriminative Stimulus
Explanation:
Discriminative stimulus is defined as term in classical conditioning in which the stimulus is utilized for obtaining a particular feedback from someone.It helps in getting the responses that are desired by an individual and increase those response accordingly.
According to the situation it also describes discriminative stimulus as Tommy prefers to ask about staying up past the bedtime from babysitter as he gets the desired response in the form of permission to stay up. His parent did not let him stay up late so the feedback was not favorable to Tommy's desire.
Other options are incorrect because stimulus class have same element consisting cluster of stimulus. S-delta is the stimulus in which non-enforced behavior is present. Reinforcer is stimulus that encourage for gaining particular response.
Thus, the correct option is option(d).
The 2010s saw more people being born than the 1950s is true
The answer would be that stress rises from both the occurrences and our cognitive appraisal of them. Cognitive appraisal means that it is the personal understanding of a condition that eventually influences the degree to which the situation is professed as stressful.