George has completely lost his sight during the past year, but medical experts can find no physical reason for his blindness. This could be an example of

a. Somatic symptoms disorder.
b. Illness anxiety
c. conversion disorder

Carla is trying to quit smoking. As part of her behavioural assessment, she is asked to maintain a diary and record what occurred before, during and immediately following each time she smoked a cigarette, in real time

That is, she had structured record sheets for each day. This type of assessment is referred to as a) ecological momentary assessment. b) self-report. c) direct observation. d) behavioural interview.

According to standard convention, a researcher must be ____ percent sure that the difference she observed between experimental conditions was not simply the result of chance in order to conclude that the difference is statistically significant

a. 90 b. 95 c. 99 d. 99.9