A sample is obtained from a population with ? = 100 and ? = 20 . Which of the following samples would produce the most extreme z-score?
a. A sample of n = 25 scores with M= 102
b. A sample of n = 100 scores with M= 102
c. A sample of n = 25 scores with M= 104
d. A sample of n = 100 scores with M= 104
D
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During his years at Columbia, Münsterberg trained more graduate students in psychology than anyone else in the United States
a. True b. False
Drew has conducted a massive amount of survey data for his Master's thesis, and needs help determining the best method for compressing the data and analyzing it in the most effective way possible. He would be best advised to seek out the assistance of a(n) ________ psychologist.
A. experimental B. personality C. developmental D. quantitative
In an experimental design,
A) the events and behaviors are divided into two types: independent and dependent variables. B) investigators are unable to control for participants' characteristics that could reduce the accuracy of their findings. C) researchers infer cause and effect by directly controlling or manipulating changes in the dependent variable. D) researchers gather information on individuals, generally in natural life circumstances, and make no effort to alter their experiences.
A researcher selects a sample by taking every sixtieth name on the list beginning with the number 3 (i.e., 3, 63, 123, 183). What type of sampling is this?
a. Simple random sampling b. Systematic random sampling c. Stratified sampling d. Cluster sampling