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 plot graphs effect size against sample size?

   Answer: Funnel plot

   Why: A lopsided funnel plot hints that small studies with disappointing results never got published, the so-called file drawer problem.

4. 4 Easy

   What do we call wrongly rejecting a true null hypothesis?

   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 gives patients real side effects from dummy pills?

   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: In 2015, the Open Science Collaboration redid 97 significant psychology studies, and only 36% of the replications were significant again.