Which popular media headline might suggest that a multiple regression has been u

Question

Which popular media headline might suggest that a multiple regression has been used? O a Vacations are important for happiness, even when length of vacation is controlled for O b. Pet ownership is an important predictor of well-being in elderly aduits cEating lunch away from your desk is associated with greater work productivity d "Daughters are happier when their mothers are happy working outside the home QUESTION 45 A researcher in theory-testing mode focuses onvalidity, while a researcher in generalization mode focuses on a external, internal validity b external, statistical c.internal, external d statistical, external QUESTION 46 Responsible journalists do which of the following as it pertains to discussing replicabity? a They report only on studies that have been directily repicated b They provide readers with statstical values from each study C They provde readers w th a sense of the entre lterature as well as recent sues d They report findings only from meta-analyses QUESTION 47 The text states that the first step in establishing a study s importance s to estabish ts a replicability b acceptance by sc entsts C internal validity d external vaidty

Explanation / Answer

44. A.

Here Happiness may be influenced by both vacation and also the specific duration of the vacation, that is there are two independent variables and thus this headline gives an instance of multiple regression.

45. c

Theory testing is a matter of internal validity( that is whether the given test or experiment is done well enough to infer a causal relationship as hypothesised) while generalisability of the findings of the research is about external validity as it focuses on how far do the methods of research lead to results which can be applied from the sample to the population parameters.

46. d.

Responsible journalists use meta analysis which is the statistical procedure for combining data from multiple studies and this pertains to the replicability of the study.

47. c.

The first major step to assess a research’s importance is to determine whether it has internal validity which determines the confidence that we can place in the cause and effect relationship in a study.

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