Research and Methods

sample

a group of people selected from a population

Why is a longitudinal study better than a cross-sectional study for examining how many years cancer survivors stay in remission?

Longitudinal studies allow you to study changes over time.

Why is a survey better than a case study to find out people's preferences for wearing certain shoe brands?

Surveys allow many people to report their personal opinions.

A _____ is a type of variable that is not accounted for in a research experiment.

confounding variable

scientific method

experimental method used to find fact and separate opinions

experimental group

group that receives the experimental treatment

control group

group used for comparison that doesn't receive experimental treatment

A researcher wants to find out how much anxiety 11th graders in American high schools experience while taking the ACT examination. Match the parts of the experiment to their appropriate terms. the ACT examination anxiety 11th graders . American high schools

independent variable dependent variable sample population

qualitative

research that explores the "why" and "how" of situations

variable

something that is likely to change

T/F A hypothesis allows you to predict the potential outcome of your research experiment.

True

Which are examples of a population and its potential sample?

All Men: Heart Attack Survivors Smokers: People Who Have Lung Cancer School District: High School Orchestra: Woodwind Players Family: Teenager

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Observation Research Hypothesis Test Analysis Communication

What is the purpose of using the Scientific Method?

This method allows people to separate fact from fiction. This method allows people to conduct orderly research. This method allows people to make new discoveries.

population

a whole group of people

A researcher wants to find out if children have higher levels of aggression if they play violent video games. What is the dependent variable?

aggression

A good sample _____.

allows you to generalize results

A researcher wants to study finches in their natural habitat. What type of qualitative research method is best to use?

observational

A researcher conducts an experiment to find out how many people experience "brain freeze" after eating a cold dessert. One group of people are given ice cream cones to eat, and the other group is given pie to eat. Which group is the experimental group?

people who are given ice cream to eat