Most evidence suggests that personality traits undergo extensive changes during adolescence so that by the time adolescence is over, most individuals have completely different personalities as compared to when adolescence began

A researcher conducts a study and finds a mean of 65 and 95% confidence interval range of 60-70 . This means that

a. there is a 95% probability that the true mean is within 60 and 70. b. 95% of the data points fell between 60 and 70. c. the researcher is 95% confident that the mean found in this study was 65. d. if the study was repeated multiple times, the calculated confidence interval would be between 60 and 70 in 95% of those studies. e. if the study was repeated multiple times, the calculated confidence interval (which would be unique for each study) would encompass the true population mean in 95% of those studies.

The psychological perspective that seeks to explain, define, and treat abnormal behaviors is called ____

a. the individual differences perspective b. clinical psychology c. developmental psychology d. evolutionary psychology