Research Methodology quiz

More questions about Research Methodology

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

1. 1 Easy

   Who is kept unaware of treatment assignments in a double-blind trial?

   Answer: Both participants and researchers

   Why: Double-blinding prevents researcher confirmation bias and unconscious subtle cues from altering patient outcomes.

2. 2 Medium

   What effect makes people act differently when they know they are watched?

   Answer: Hawthorne effect

   Why: A 2011 reanalysis of the original 1924 to 1927 lighting data found the famous Hawthorne productivity patterns were fictional.

3. 3 Hard

   Which meta-analysis graph plots effect size against sample size to spot bias?

   Answer: Funnel plot

   Why: An asymmetric funnel plot exposes missing negative studies, graphically revealing the hidden 'file drawer' effect.

4. 4 Easy

   What error occurs in scientific testing when a true null hypothesis is incorrectly rejected?

   Answer: Type I error

   Why: Type I errors are essentially false alarms, while Type II errors are misses where a real effect is overlooked.

5. 5 Medium

   What effect causes patients to suffer real side effects from inert substances?

   Answer: Nocebo effect

   Why: In the SAMSON trial, patients who had quit statins over side effects felt 90 percent of the same symptom burden on identical dummy pills.

6. 6 Easy

   What scientific practice involves repeating a study to verify findings?

   Answer: Replication

   Why: The ongoing replication crisis revealed that more than half of landmark psychology and cancer biology studies failed to replicate.