Who first defined psychology as the study of behavior??

An analysis of 26 longitudinal studies by Lansford et al., 2012) found that mild spanking was about as effective as other discipline methods that did not use spanking, such as verbal reminders and time outs. The researchers argued that past results showing an association of spanking with problem behavior in children

a. were correlational and therefore invalid. b. were cross-sectional rather than longitudinal and therefore could not draw conclusions about the outcomes of spanking. c. included some families that used more severe spanking, and it is only in these families that negative outcomes of spanking are found. d. were conducted with mentally ill parents, and the children’s poor behavior could have been inherited.

For at least the first six months after becoming infected, a person can test negative while carrying the HIV virus

a. True b. False Indicate whether the statement is true or false