As preschoolers, the children born to the women who were diagnosed with both ptsd and depression following the september 11, 2001, attacks on the world trade center showed evidence of higher reactivity to stimuli and more aggressive behavior than did children of terrorism-exposed mothers who did not develop these disorders. what is the likely source? a. operant conditioning that rewarded such behaviors among these familiesb. the inhibition of serotonin and dopamine during brain developmentc. learned behaviors based on the observation of ptsd symptoms in othersd. the ability of cortisol and other stress hormones to cross the placenta

How did the british react to the ninety-two resolution? why

Which statement best describes an advantage of indirect democracy over direct democracy? a. it can make decision making more efficient b. it can citizens feel more connected to government c. it can be more responsive to citizens' interests d. it can better reflect the democratic principle of majority rule

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