a type of interview that while having specific objectives permits the viewer

# A type of interview that while having specific

This preview shows page 3 - 5 out of 8 pages.

a type of interview that, while having specific objectives, permits the viewersome freedom in meeting themTelephone interview/survey:a type of survey in which interviewers interact with respondents over the phoneTrend study:a longitudinal design in which a research question is investigated by repeated surveys of independently selected samples of the same populationUnstructured interview: a type of interview guided by broad objectives in which questions are developed as the interview proceedsBivariate analysis:the statistical analysis of the relationship between two variablesChi-square test: a test of statistical significance used to assess the likelihood that an observed association between two variables could have occurred by chance.Correlation:Descriptive statistics: brief descriptive coefficients that summarize a given data set which can be either a representation of the entire population or a sample of itInferential statistics: makes inferences about populations using data drawn from the population.
Frequency distribution:function showing the number of instances in which a variable takes each of its possible values.Listwise deletion: is a method for handling missing data. In this method, an entire record is excluded from analysis if any single value is missing.Mean:average valueMedian: midpoint in a distribution Mode:most frequent valueMissing data: occur when no data value is stored for the variable in an observationRegression: a measure of the relation between the mean value of one variable (e.g., output) and corresponding values of other variablesNull hypothesis:the hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental errorOutliers:the point on a histogram Range: the area of variation between upper and lower limits on a particular scaleStandard deviation: a quantity calculated to indicate the extent of deviation for a group as a whole.Univariate analysis: the simplest form of analyzing data.Wild-code checkingKey Questions1.Why are experiments said to be high in internal validity? What are the unique features of experiments that help us meet the three requirements for establishing a causal relationship?What are the three requirements for establishing a causal relationship?a.Experiments are said to have high internal validity because in experiments a manipulatedvariable is followed by a measured variable and that causes it to have high internal validityb.Association, direction of influence, and nonspuriousness

#### You've reached the end of your free preview.

Want to read all 8 pages?

• Spring '19
• researcher, internal validity, stratified random sampling

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern