An animal is given an option between a yellow target that provides 2 grains of food after a constant delay of 10 seconds, or a green target that provides 2 grains of food after a variable delay: one half of the visits the delay on green is 1 second and on the other half of the visits the delay is 19 seconds. the animal tends to

Multiple-choice the word "democracy" means: (a) "rule by the people" (b) "minority rule" (c) "individual rights" in a democracy, election results are protected against dishonesty by: (a) laws (b) customs (c) values the type of government in which the people are represented by elected officials is sometimes called a: (a) monarchy (b) republic (c) totalitarian state in most democracies, the only legal requirements for voting or holding public office are based on age, residence, and: (a) religion (b) citizenship (c) personal wealth in an election, political parties give voters a choice among candidates who tend to represent different: (a) ethnic groups (b) religious groups (c) interests and points of view

Immigrants arriving in the united states during the late 1800s experienced many difficulties. which of the following was a problem which large numbers of immigrants faced?

Which of the following methods could be considered a "best practice" in terms of informing respondents how their answers to an on-line survey about personal information will be protected? respondents are informed that investigators will try to keep their participation confidential; however, confidentiality cannot be assured. respondents are informed that a research assistant will transfer all the research data to a password-protected computer that is not connected to the internet, via a usb flashdrive. the computer is located in a research team member's office. the investigator uses the informed consent process to explain her institution's method for guaranteeing absolute confidentiality of research data. the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed. the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed