RESEARCH METHODS EXAM 2
CERTIFICATION EVALUATION 2026 FULL
QUESTIONS AND SOLUTIONS UPDATED
◉ Endogenous change
Answer: developmental changes that occur within the individual.
◉ External events
Answer: :"exogenous events" things that happen in the environment
that changes the results of the experiment. A comparison group can
minimize the effects of external events
◉ Contamination
Answer: when the experimental and control groups communicate.
the control group receives some of the intervention
◉ Treatment mis-identification
Answer: treatment does not cause the outcome the outcome is cause
be something that occured in the conduct of the experiment
◉ placebo effect
, Answer: people improve because the think they are getting better.
It's the expectation of treatment rather than the treatment itself
◉ Hawthorne effect
Answer: people may change because more attention is being paid to
them and they feel special. to avoid treatment mididentification,
researchers use process analysis more frequently
◉ What is an omnibus servery
Answer: large scale studies that cover a range of topics in a single
survey. the data collected can be used by other researches that do
not have the means to conduct such a large study
◉ What is the best way to maximize the response rate on a survey?
Answer: the use of follow up mailings
◉ Phone survey
Answer: today drawing a random sample is easier than ever because
of the random digit dialing, good for short surveys, careful
interviewer training is required
◉ IN-person interview
Answer: higher response rates, can be longer and more complex
than phone surveys
CERTIFICATION EVALUATION 2026 FULL
QUESTIONS AND SOLUTIONS UPDATED
◉ Endogenous change
Answer: developmental changes that occur within the individual.
◉ External events
Answer: :"exogenous events" things that happen in the environment
that changes the results of the experiment. A comparison group can
minimize the effects of external events
◉ Contamination
Answer: when the experimental and control groups communicate.
the control group receives some of the intervention
◉ Treatment mis-identification
Answer: treatment does not cause the outcome the outcome is cause
be something that occured in the conduct of the experiment
◉ placebo effect
, Answer: people improve because the think they are getting better.
It's the expectation of treatment rather than the treatment itself
◉ Hawthorne effect
Answer: people may change because more attention is being paid to
them and they feel special. to avoid treatment mididentification,
researchers use process analysis more frequently
◉ What is an omnibus servery
Answer: large scale studies that cover a range of topics in a single
survey. the data collected can be used by other researches that do
not have the means to conduct such a large study
◉ What is the best way to maximize the response rate on a survey?
Answer: the use of follow up mailings
◉ Phone survey
Answer: today drawing a random sample is easier than ever because
of the random digit dialing, good for short surveys, careful
interviewer training is required
◉ IN-person interview
Answer: higher response rates, can be longer and more complex
than phone surveys
