A researcher wishes to test the hypothesis that arrest deters recidivism. She gathers a sample of people who have been arrested. What is the independent variable? What is the dependent variable? What is the unit of analysis?
Here, the independent variable is if the person is arrested or not , and dependent variable is recidivism and unit of analysis is binary(it takes 0 or 1 depends on the person is arrested or not).
A researcher wishes to test the hypothesis that arrest deters recidivism. She gathers a sample of...
a research wishes to test the hypothesis that the level of urbanization in a city or town affects residents social cohesion. She gathers a sample of municipal jurisdictions (cities and towns). What is the independent variable? What is the dependent variable? What is the unit of analysis?
Bouffard and Piquero (2010) wanted to know whether arrested suspects' perceptions of the way police treated them during the encounter affected the likelihood that those suspects would commit more crimes in the future. Their sample consisted of males who had been arrested at least once during their lives. They measured suspects' perceptions of police behavior as fair or unfair. They measured recidivism as the number of times suspects came into contact with police after that initial arrest. A) Identify the...
A researcher wants to know whether husbands and wives have different daily caloric intake. She gathers a random sample of couples (80 husband and wife pairs). This is an independent samples study design. True or false?
Identify the independent and the dependent variable, as well as the unit of analysis, in the following hypothesis- Fewer people who are lower class own their own home than people who are upper class. IV: DV: Unit of analysis: Identify the independent and the dependent variable, as well as the unit of analysis, in the following hypothesis- Fewer people who are lower class own their own home than people who are upper class. IV: DV: Unit of analysis:
A researcher claims that 45% of students drop out of college. She conducts a hypothesis test and rejects the null hypothesis. What type of error could have been committed here? A. Power of the test B. Type II C. There are never errors in hypothesis testing D. Type I
A researcher wants to test the hypothesis that defendants who plead guilty are sentenced more leniently than those who insist on going to trial the researcher measures the plea decision as a guilty plea or trial and the sentence as the number of months of incarceration to which defendants were sentenced. what is the independent variable?
A researcher wishes o estimate he prop (a) she uses a previous estimate of 0.42? (b) she does not use any prior estimates? orton of adults who have high speed Internet access. What sze sample should be obtained if she wishes the estimate to be within O 2 with 90% confidence (a)n(Round up to the nearest integer)
A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.01 with 90% confidence if (a) she uses a previous estimate of 0.34? (b) she does not use any prior estimates?
A researcher aims to test a hypothesis that average LDL cholesterol level is greater among diabetic adults that have HIV in Chicago compared to Chicago diabetic adults who don't have HIV. The average LDL cholesterol level among diabetic patients in Chicago who don't have HIV is 150 mg/dL. She is considering a design with a sample with 150 randomly chosen adult diabetic patients with HIV in chicago and a level of significance at 0.05. She wants to calculate the statistical...
A researcher wishes to know if there is a difference between pre-exercise body temperature and post-exercise body temperature in a sample of people. What type of test would you use to answer this? A. Two sample, independent t test B. One way ANOVA C. Spearman Correlation D.Paired t test