Quantitative Research (Practice Quiz)

It is a form of natural study where exposure and outcomes are observed.

• Qualitative study

• Randomized control

• Observational study.

• Longitudinal study.

An experiment is ________ when both the researcher and the subjects of the experiment do not know who received the treatment.

• blind

• biases

• double blind

• an observational study

A numerical characteristic of the POPULATION is ?

• Parameter

• Statistic

• Observation

• Study

A Parks Department employee wants to know if latex paint is more durable than non-latex paint. She has 50 park benches painted with latex paint and has 50 park benches painted with non-latex paint. What type of study is this?

• Experiment

• Observational study

• Survey

• Interview.

A researcher asks college students how many hours of sleep they got on an average night and examines whether the number of hours of sleep affects the students’ grades. What type of study is this?

• Randomized control trial.

• Experiment.

• Observational study.

• Survey.

A grocery store conducts an online study in which customers are randomly selected and asked to provide feedback on their shopping experience. What type of study is this?

• Survey.

• Experiment.

• Lontitudinal study.

• Observational study.

Unbiased sampling is ______

• when any member of the population is equally likely to be chosen for the sample

• when you choose the group you think will represent the sample

A longitudinal study is __________ (more than 1 answer)

• a type of correlational research study involve looking at variables over an extended period of time.

• not an observational study.

• much faster than cross-sectional study.

• more likely to suggest cause-and-effect relationships.

The benefits of randomized controlled trial (RCT) are _____ (more than 1 answe)

• Good randomization will "wash out" any population bias.

• Easier to blind/mask than observational studies.

• Populations of participating individuals are clearly identified.

• Results can be analyzed with well known statistical tools.

Having a volunteer bias in the population group is a good thing because it means the study participants are eager and make the study even stronger.

• True

• False