Health, 09.10.2019 17:30 nayelimoormann
Two studies test a hypothesis about the association between crime and drug use. study a uses a cross-sectional survey design to test the hypothesis that crime increases drug use. adults are surveyed and asked about their levels of drug use and criminal behavior. study b uses a cross-sectional survey design to test the hypothesis that juvenile delinquency causes drug use. adults are surveyed about their delinquent behaviors in adolescence and whether they are currently using drugs. with respect to the two studies:
a. study a does a better job of meeting criteria for establishing causality between variablesb. neither a nor b does a better job of meeting the criteria for establishing a causal connectionc. study a is preferable to study bin terms of the criterion of association onlyd. study b does a better job of meeting criteria for establishing causality between variablese. study b is preferable in terms of the criterion of nonspuriousness only
Answers: 2
Health, 23.06.2019 04:31
Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides.b) replication of their genomes does not involve proofreading.c) rna viruses can incorporate a variety of nonstandard bases.d) rna viruses are more sensitive to mutagens.
Answers: 3
Health, 23.06.2019 04:31
Which of the following can be effective in preventing the onset of viral infection in humans? a) taking vitaminsb) getting vaccinatedc) taking antibioticsd) taking drugs that inhibit transcription
Answers: 1
Two studies test a hypothesis about the association between crime and drug use. study a uses a cross...
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