According to Freud, the best personality is one that is dominated by the

The construct validity of observations can be threatened by all of the following EXCEPT:

a. observer bias. b. observer effects. c. reactivity. d. socially desirable responding.

Susan remembered that when her infant daughter first saw a set of keys, she stared at them intensely. However, as she looked at them longer, she became used to them and seemed to no longer find them interesting. This change in responsiveness illustrates the learning process known as:

a. habituation b. shaping c. stimulus generalization d. sensitization