STP Research Methods 4

Question 1

Which qualitative research method involves the researcher becoming immersed in a community to observe behavior in its natural context?

Accepted Answer

Ethnography

Answer

Ethnography involves prolonged, immersive observation within a community or setting to understand cultural practices and behaviors in context.

Question 2

Sensitivity of a diagnostic test refers to its ability to:

Accepted Answer

Correctly identify those who DO have the disease

Answer

Sensitivity is the proportion of true positives correctly identified by the test — its ability to detect those who have the disease.

Question 3

In a systematic review, heterogeneity among included studies refers to:

Accepted Answer

Variation in results beyond what would be expected by chance

Answer

Heterogeneity describes variability in study results that exceeds chance, often assessed using the I² statistic, and affects whether results can be pooled.

Question 4

Which research design is most suitable for studying a rare disease with a long latency period?

Accepted Answer

Case-control study

Answer

Case-control studies work backwards from outcomes to exposures, making them efficient for rare diseases since cases are identified first and the long latency is already expressed.

Question 5

The intraclass correlation coefficient (ICC) is used to assess:

Accepted Answer

Agreement between two or more raters measuring the same subjects

Answer

ICC measures the degree of agreement or consistency between two or more raters or repeated measurements of the same continuous variable.

(STP) Scientist Training Programme Practice Test

(STP) Scientist Training Programme Practice Test

STP Research Methods 4