A researcher presents two lights of varying brightness to a
subject who is asked to respond same or different as he or she compares the intensities. The researcher is seeking the threshold.
a. difference
b. absolute
c. subliminal
d. phosphene
ANSWER: a
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You scan the night sky looking for meteors or comets. They appear at unpredictable times. This is an example of which type of schedule of reinforcement?
a. Fixed-interval b. Variable-interval c. Fixed-ratio d. Variable-ratio
If a distribution of scores is shown in a bar graph, you know that the scores were measured on a(n) _________ scale of measurement
a. nominal or ordinal c. interval or ratio b. ordinal or interval d. discrete or continuous
Suppose that Ricardo is sitting in class, that he is extremely hungry, and that he spots his neighbor munching on a tempting snack. If Ricardo is like MOST people, then his automatic system would ____
a. not even notice b. notice but would not have any thoughts about it c. prompt him to snatch the snack away from the neighbor d. prompt him to think of a more socially acceptable way to get a snack
Dr. Chein studied changes in genes that occur by mistake. Dr. Chein’s research is BEST described as being focused on:
a. gene mutations b. natural selection c. evolution d. traits