The phone in your room rings; you pick it up and immediately recognize the voice of your grandfather. What process is involved in this recognition?
a) sensation
b) perception
c) adaptation
d) transduction
ANS: b
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Which of the following is a relative limitation of the use of an ultrasound?
a. It requires an instrument so large that is impractical to have in most physicians' offices b. It is notoriously unreliable at accurately identifying the sex of the child prior to birth. c. It carries a 1% chance of inducing a miscarriage. d. It gives a very grainy picture that takes an expert's eyes to interpret.
The research method in which one or more independent variables are manipulated to determine the effects on other dependent variables is called
a. experimental design. c. correlational design. b. scientific method. d. variable design.
Two 1st-year college students, Carlos and Carl, are used to taking different types of academic tests. Carlos has mostly taken essay tests, and Carl has mostly taken multiple choice tests. What problem may arise when they take the same tests in college?
a. Depending on the type of tests given, there may be construct bias present in the test scores. b. Depending on the type of tests given, there may be method bias present in the test scores. c. Depending on the type of tests given, there may be method bias present in the test scores. d. Depending on the type of tests given, there may be reliability bias present in the test scores.
Leila is a single mother and must return to work assoon as possible after the birth of her son
She has selected a well-know national day care for her infant son. The center staff has assured her that they disinfect the center on a regular basis. However, Leila should expect ______________ during the first year of attendance. a. twice as many infections as home-reared infants b. as many infections as children in small day care homes c. fewer infections than children in small day care homes d. no differences in the number of infections as opposed to children in other settings