LSP Research Methods & Statistics 2

Question 1

What is effect size and why is it important beyond p-values?

Accepted Answer

A measure of the magnitude of a treatment effect or relationship, indicating practical significance beyond statistical significance

Answer

A measure of sample size

Answer

The number of variables in a study

Answer

The cost of conducting research

Question 2

What is a control group in experimental research?

Accepted Answer

A group that does not receive the experimental treatment, serving as a baseline for comparison

Answer

The group that controls the experiment

Answer

The largest group in the study

Answer

A group of researchers overseeing the study

Question 3

What is internal validity in research?

Accepted Answer

The degree to which an experiment demonstrates that the independent variable caused changes in the dependent variable

Answer

The validity of the measures used in the study

Answer

How well results generalize to other settings

Answer

The statistical power of the analysis

Question 4

What is the difference between qualitative and quantitative research?

Accepted Answer

Quantitative uses numerical data and statistical analysis; qualitative uses non-numerical data like interviews and observations to understand experiences

Answer

Quantitative is always better than qualitative

Answer

Qualitative research uses larger samples

Answer

They cannot be combined in the same study

Question 5

What is the APA's ethical requirement regarding deception in research?

Accepted Answer

Deception is permitted only when no alternative exists, the study has significant value, and participants are debriefed as soon as possible

Answer

Deception is never permitted in psychological research

Answer

Deception is always acceptable if the researcher believes it is necessary

Answer

Only verbal deception is prohibited

Question 6

What is a longitudinal study design?

Accepted Answer

A study that follows the same participants over an extended period to observe changes over time

Answer

A study conducted in a long room

Answer

A study with a very large sample

Answer

A study that takes a long time to analyze