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1 why must researchers use reliable measures2 why is it virtually impossible to eliminate all measurement error from
1 distinguish among observational physiological and self-report measures2 what do researchers interested in
1 why do researchers want the error variance in their data to be small2 why do researchers use
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 do researchers care how much variability exists in a set of data2 distinguish between descriptive and inferential
1 define reaction time task completion time and interbehavior latency2 give three examples other than those in the
1 give five examples of physiological measures2 what considerations must a researcher keep in mind when writing the
1 list as many sources of archival data as you can2 what four kinds of research questions are particularly suited for
hypochondriacs are obsessed with their health talk a great deal about their real and imagined health problems and visit
1 what three rules govern the construction of a grouped frequency distribution2 what is the difference between a
1 distinguish between a quota sample and a purposive sample2 what three criteria characterize good descriptions of
1 what is the difference between a stratum and a cluster2 what is the drawback of obtaining random samples by
1 why are psychologists sometimes interested in epidemiology2 why do researchers use probability rather than
how do the concepts of present and future value help us make the kinds of decisions we must make to plan
1 a successive independent survey design and a longitudinal survey design both examine changes in responses over time
1 how does descriptive research differ from other kinds of research strategies such as correlational experimental and
imagine that you have collected the following set of iq scoresa construct a simple frequency distribution of these
1 what is a restricted range and what effect does it have on correlation coefficients how would you detect and correct
1 do outliers increase or decrease the magnitude of correlation coefficients2 what impact does reliability have on
1 how can partial correlation help researchers explore possible causal relationships among correlated variables2 when
imagine you obtained a point biserial correlation of 35 between gender and punctuality showing that men arrived later
1 when do researchers use regression analysis2 what is multiple regression analysis3 distinguish among simultaneous or
1 write the general form of a regression equation that has a single predictor variable identify the criterion variable
1 what are order effects and how does counterbalancing help us deal with them2 distinguish between treatment confound
one of the behavioral research case studies in this chapter involved agocha and cooperamp39s 1999 study of partner