Module 2 practice quiz
Dr. Stillingsworth is interested in people's reactions to a controversial jury verdict. Dr. Stillingsworth calls people at their home between the hours of 1:00 p.m. and 3:30 p.m. on a Tuesday afternoon. In this example Dr. Stillingsworth has MOST likely selected
a biased sample
Dr. Malm predicts that if teachers ignore students who act up in class, fewer students will act up in class. Dr. Malm's prediction is an example of
a hypothesis
One advantage of naturalistic observation is that it
allows behavior to be studied in realistic settings.
A sample is representative if
its composition is similar to the composition of the population.
When, or if, a research project uses a sample that is NOT representative of the population from which it was drawn, the project would show the effect of
sampling bias
To determine whether students would like more courses scheduled in the late afternoon and evening hours, the Student Services department sends questionnaires to 50 students selected at random from the 5,000 who are registered at the campus. In this instance, the 5,000 students who are registered at the campus would be
a population
To discover whether residents of a city are in favor of building a new sports stadium, the team's owner randomly selected and interviewed 500 of the city's 500,000 residents. In this instance, the 500 people that the owner interviewed would be
a representative sample.
Dr. Marqueta believes that "misery loves company." Based on this belief, Dr. Marqueta predicts that people who have received bad news will seek out other people. Dr. Marqueta's belief is an example of __________, and her prediction is an example of __________.
a theory; a hypothesis
A researcher is measuring the heart rate of subjects as an index of anxiety. In this study, heart rate is
an operational definition of anxiety.
Which of the following techniques is most likely to prove useful in determining why one particular child is afraid to go to school?
case study
Which research method involves an in-depth investigation of an individual subject?
case study
An operational definition
describes the actions and procedures used to measure or control a variable.
To generalize results to a population, we must first
draw a representative sample from the population of interest.
The fact that many times researchers unintentionally influence the outcome of their studies implies the existence of
experimenter bias
Experimenter bias occurs when
experimenters' beliefs in their own hypotheses affect either the subjects' behavior or their observations of the subjects.
A tentative statement about the relationship between two or more variables is a(n)
hypothesis
By definition, a sample
is a subset of the population who actually participate in a research study.
Going to a playground for an hour each day for two weeks and recording girl-boy exchanges would be an example of
naturalistic observation
Which research method involves a researcher engaging in careful observation of behavior without intervening directly with the subjects?
naturalistic observation
One of your friends is writing a research paper and wants to obtain information about the depth of personal information people typically reveal during a first date. Directly observing a large number of people during a first date will be difficult, so your friend asks for your advice on the best way to collect this type of data. The best suggestion would be for your friend to use
survey
In which of the scientific research methods are distortions in self-report MOST likely to be of concern to the researcher?
survey method
The research method in which a researcher uses questionnaires or interviews to gather information about specific aspects of participants' behavior is the
survey method
A scientific theory has to be
testable
One of the main concerns with the case study method of research is that
the experiences reported may not be representative of other cases.
Perhaps the greatest disadvantage or limitation associated with descriptive research methods is
the inability to control events and isolate cause and effect linkages.
Estavan received a questionnaire in the mail asking about his general buying habits. He was asked to identify the specific products that he typically buys, and the amount of each product that he typically uses. If Estavan completes the questionnaire and returns it, he will have taken part in research that incorporates
the survey method
In the survey method the researcher
uses questionnaires or interviews to gather information about specific aspects of participants' behavior.