Ken used to drool at the smell of peanut butter cookies as they baked, and he couldn’t wait to sink his teeth into that first cookie. However, Ken’s new roommate makes terrible peanut butter cookies, and the smell of them baking is no longer associated with a wonderful taste experience. Consequently, Ken finds that the smell of the cookies no longer makes him drool in anticipation. This illustrates the classical conditioning process known as a. avoidance. b. spontaneous recovery. c. extinction. d. second–order conditioning.

answer; depression and breathing related sleep disorder(independent);

answer; can each be concretely realized in different ways;

representative sample

sociologists study the world, observe a predicament or interesting design, and set out to investigate it. they use investigation methods to design a study possibly a comprehensive, detailed and precise, by using experimental method for directing research and gathering data.

to study the characteristics of the whole population, sociologist prefers to obtain the sample which is the finite part of a demographic population whose characteristics are analyzed to obtain data from statistics.

when administering with population, it can be described as a set of respondents picked from a larger population for the goal of a survey. a population could be a group of objects, people, or articles from which samples are obtained for computation of the whole population which is the aim of the sociological study.

the answer to your qyestion is vincent van gogh.