Psychologists have conducted studies in which the participants must detect a stimulus in a display of many other objects. According to this research, people usually detect
a. a combined feature more quickly than an isolated feature.
b. a feature that is present more quickly than a feature that is absent.
c. a stationary object more quickly than a moving object.
d. a small object more quickly than a large object.
Ans: b
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A statistically significant finding can sometimes be the result of chance fluctuation. This concern can be eased by
A. replication. B. using case studies. C. making predictions before seeing the data. D. using manipulated independent variables.
Which of the following is made by labeling class intervals on the abscissa, frequencies on the ordinate, and then drawing bars for each class interval with the height of each bar being determined by the number of scores in each class?
a. scatter diagram b. histogram c. frequency polygon d. normal curve
Intelligence is considered one's underlying ability whereas achievement is one's performance
Indicate whether the statement is true or false
Sasha is 12 years old. Her mom frequently finds Sasha crying in her room. She tells her
mother that none of her classmates like her and she wishes she could vanish. Which one of the following diagnoses best fits Sasha's behaviors? a. Childhood-onset conduct disorder b. Adolescent-onset conduct disorder c. Depression d. Oppositional defiant disorder