A set of 10 scores has SS = 90. If the scores are a sample, the sample variance is ____ and if the scores are a population, the population variance is ____
A) ?s2 = 9; ?2 = 9
B) ?s2 = 9; ?2 = 10
C) ?s2 = 10; ?2 = 9
D) ?s2 = 10; ?2 = 10
C
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Relative to experimental studies, the primary disadvantage of correlation studies is that
a. they are more labor-intensive b. they do not allow one to determine causality. c. the results are more difficult to understand. d. the choice of variables that can be studied is limited.
Aisha wants to study how individuals interact with and influence each other. She should probably go into ____
a. ?social psychology b. ?developmental psychology c. ?cross-cultural psychology d. ?personality psychology
Which people have an elevated risk for developing Tay-Sachs disease?
a) African Americans b) Eastern European Jews c) inhabitants of northern climates d) inhabitants of countries with diets lacking Vitamin B
The biological theory called ________ examines the adaptive significance or survival value of behaviors
Fill in the blank with the appropriate word.