Annie is studying how reaction time is related to age group. She wants to compare younger adulthood (18–24), middle adulthood (40–46), and older adulthood (74–80), so she tests the reaction times of 20 people in each age group on a video game task. What is the most appropriate statistical test for Annie to run?
a. One-way, between-groups ANOVA
b. One-way, repeated-measures ANOVA
c. Independent-samples t-test
d. Paired-samples t-test
Ans: B
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If your boss thinks very highly of you in general, she may tend to see even your mediocre projects as excellent work. This would be evidence for
a. the discriminative effect. b. the sampling effect. c. the placebo effect. d. the halo effect.
Which of the following statements is most accurate regarding parental input regarding a possible diagnosis of ASD?
a. Parents' memories are usually unreliable regarding their child's early development. b. Parents usually overestimate their child's abilities and therefore should be not considered as more important than a clinical assessment. c. Parents usually underestimate their child's abilities and therefore should be dismissed. d. Parents' perceptions of their child's difficulties are often accurate and should be addressed in a timely manner.
When we approach an object or when it approaches us, we perceive its size
a. as getting bigger. b. to remain constant. c. in proportion to the size of the retinal image it produces. d. from the size of the afterimage. e. as a function of its speed of approach.
The hallmark of which cognitive stage is the ability to carry out mental operations such as reversing thoughts?
a. preoperational b. sensorimotor c. concrete operational d. post-operational