Kirby is a juror in a rape trial in which both the prosecution and defense are relying on eyewitnesses. It is likely that Kirby will
a. be able to determine which eyewitnesses are accurate.
b. use eyewitness confidence as a cue to eyewitness accuracy.
c. underestimate the accuracy of all of the eyewitnesses.
d. understand the factors that influence eyewitness accuracy enough to determine whether an eyewitness isbiased.
b
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Dr. Taylor is conducting a study to test the effect of a new drug on people's ability to concentrate at work. His research sample consists of 100 US adults. During a 14-week period, half of the sample is administered the drug and the other half is administered a placebo, and participants' concentration abilities are continually tracked. In the context of this study, if Dr. Taylor uses random
assignment, it means that ____. a. his study will be high in external validity b. the 100 adults in his study are likely to be representative of the larger population of interest c. each research participant has an equal chance of being assigned to each level of the independent variable d. his research findings are likely to be statistically significant
According to research on infants' recognition of their mothers,
a. infants can recognize that mothers look different from strangers, beginning at less than 1 week of age. b. because infants' vision is so primitive, they cannot visually recognize their mothers until they are about 6 weeks of age. c. prior to birth, the walls of the uterus prevent the sound of the mother's voice from reaching the fetus. d. infants do not seem to be able to distinguish their mother's voices from those of strangers until they are 4 weeks of age.
The lack of support for the existence of recovered memories is based on
a. evidence that therapists may be suggesting traumatic memories. b. studies that show how easily false memories can be implanted through leading questions. c. both a and b d. individuals who have confessed to falsely accusing people of abuse.
It is possible to have a set of scores with three different values for central tendency
Indicate whether the statement is true or false