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1 under what conditions is the median a more meaningful measure of central tendency than the mean2 why do researchers
1 what three rules govern the construction of a grouped frequency distribution2 what is the difference between a
under what conditions is a grouped frequency distribution more useful as a means of describing a set of scores than a
1 distinguish between a quota sample and a purposive sample2 what three criteria characterize good descriptions of
1 what type of sample is used most frequently in behavioral research2 is it true that valid conclusions cannot be drawn
1 what is the difference between a stratum and a cluster2 what is the drawback of obtaining random samples by
1 what is the central difficulty involved in obtaining simple random samples from large populations2 how does cluster
1 a successive independent survey design and a longitudinal survey design both examine changes in responses over time
1 why are psychologists sometimes interested in epidemiology2 why do researchers use probability rather than
1 what does the error of estimation tell us about the results of a study conducted using probability sampling2 what
suppose that you wanted to study children who have down syndromehow might you use cluster sampling to obtain a
using the table of random numbers in appendix a-1 draw a stratified random sample of 10 boys and 10 girls from the
imagine that you have collected the following set of iq
1 the correlation between self-esteem and shyness is -50 interpret this correlation2 which is larger-a correlation of
tell whether each of the following relationships reflects a positive or a negative correlationa the amount of stress in
question 1 dr rasp just finished re-reading charles dickens a christmas carol a tragic novel in which a prosperous
imagine that you want to know whether the sat is biased against group x and in favor of group y you administer the sat
1 what are the advantages and disadvantages of using narrative records in observational research2 distinguish between a
1 give five examples of physiological measures2 what considerations must a researcher keep in mind when writing the
1 how might you find information about measures that have been developed by ofllerresearchers2 what are diary
1 list as many sources of archival data as you can2 what four kinds of research questions are particularly suited for
1 why do researchers care how much variability exists in a set of data2 distinguish between descriptive and inferential
1 what is the range and why is it not ideal as an index of variability2 give a definition of variance then explain how
1 why are researchers often interested in the proportion of total variance that is systematic variance2 what would the
1 the total variance in a set of scores can be partitioned into two components what are they and how do they differ2