Null hypothesis significance testing is used to compare two means in an independent groups design.
(a) What is the null hypothesis? (b) What is required to "reject" the null hypothesis?
(a) The null hypothesis when two means are compared is that the mean of the first population is the same as the mean of the second population. (b) A "statistically significant" difference between two sample means is required to reject the null hypothesis. Specifically, it must be shown that there is a very low likelihood that a difference between the two sample means would occur by chance if the null hypothesis were true (i.e., p < .05).
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While home alone one night, you hear the squeal of tires and a loud crash. Your body intensely reacts by jolting you out of your chair and propelling you toward the door. Which system has produced such a dramatic change so quickly?
A. Limbic system B. Sympathetic nervous system C. Somatic nervous system D. Parasympathetic nervous system
If Maury's son's development is normal, Maury can expect that his son will develop depth perception by about what age?
a. 3 months b. 6 months c. 9 months d. 12 months e. 18 months
Which of the following statements is falsifiable?
A. You will travel in the future. B. Six-year-olds are more likely to master conservation than 4-year-olds. C. Most of our motivations are unconscious. D. The most important aspect of dreams is latent content.
Thinking in which a general rule or principle is gathered from a series of specific examples, for instance, inferring the laws of gravity by observing many falling objects is called __________ thinking
Fill in the blank(s) with correct word