Research Methods and Statistics - practice
test Questions With Correct Answers.
What is the difference between cross-sectional and longitudinal research? - answer✔✔Cross-
sectional research compares different groups at the same time, while longitudinal research
follows the same group over an extended period.
What is the definition of hindsight bias? - answer✔✔Hindsight bias is the tendency to believe an
event was predictable after it occurred.
What is the purpose of an operational definition? - answer✔✔An operational definition defines a
variable in terms of how it is measured.
What is the role of critical thinking in research? - answer✔✔Critical thinking involves objective
analysis and evaluation of an issue.
What is the importance of replication in research? - answer✔✔Replication involves repeating a
research study to confirm the results.
What is the difference between naturalistic observation and a case study? -
answer✔✔Naturalistic observation involves observing behavior in its natural setting, while a
case study is an in-depth analysis of an individual or small group.
What is the definition of a population in research? - answer✔✔A population refers to all
individuals in a particular group of interest.
What is the purpose of a survey in research? - answer✔✔A survey is a data collection method
using questionnaires or interviews.
What is the difference between random assignment and random sampling? - answer✔✔Random
assignment involves assigning participants to experimental groups by chance, while random
sampling involves selecting a sample from a population at random.
What does the correlation coefficient measure? - answer✔✔The correlation coefficient is a
statistical measure of the relationship between variables.
What is the potential issue with sampling bias? - answer✔✔Sampling bias can lead to
unrepresentative results in a study.