Social Studies, 06.12.2019 17:31 andrewbao999
Emma is planning an experiment to examine whether reading to children increases their vocabulary size. she plans to measure the vocabulary size of a group of 18-month-old children, read to them three times a week for 3 months, then measure their vocabulary size again. which threat to internal validity should she be most concerned about
Answers: 3
Social Studies, 22.06.2019 08:30
Catherine sat down will all of her income details from the past year to calculate the total income she had in that period. after she created a consolidated income statement, she deducted some tax-exempt income details from the statement. what term would catherine use for this final income calculation?
Answers: 1
Social Studies, 23.06.2019 02:30
Which environmental change allowed people to travel by land between asia and north america a.human apaption to arctic environments b.the introduction to horses to north america c.the formation of ice sheets on land d.a rise in ocean temperatures
Answers: 3
Social Studies, 23.06.2019 08:30
Carefully study the chart above. which of the following statements best describes literacy rates in north africa? i am running out of time !
Answers: 3
Social Studies, 23.06.2019 17:00
What is the difference between an observational study and an​ experiment? choose the correct answer below. a. in an​ experiment, a treatment is applied to part of a population and responses are observed. in an observational​ study, a researcher measures characteristics of interest of a part of a population but does not change existing conditions. b. in an​ experiment, a treatment is applied to an entire population and responses are observed. in an observational​ study, a researcher measures characteristics of interest of an entire population but does not change existing conditions. c. in an​ experiment, a researcher measures characteristics of interest of a part of a population but does not change existing conditions. in an observational​ study, a treatment is applied to part of a population and responses are observed. d. in an​ experiment, a researcher measures characteristics of interest of an entire population but does not change existing conditions. in an observational​ study, a treatment is applied to an entire population and responses are observed.
Answers: 1
Emma is planning an experiment to examine whether reading to children increases their vocabulary siz...
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