Research Methods & Evidence-Based Practice Flashcards

Which type of study design is considered the gold standard for evaluating the effectiveness of a pool sanitation protocol?

Answer: Randomized controlled trial

Randomized controlled trials minimize bias by randomly assigning subjects to treatment and control groups, making them the gold standard for evaluating interventions.

When reviewing a study on cyanuric acid's effect on chlorine efficacy, what is the MOST important indicator of result reliability?

Answer: The study had a large, representative sample size

A large, representative sample size reduces the margin of error and increases the statistical power and reliability of research findings.

A pool operator reads a claim that a new algaecide 'works better than chlorine.' Which evidence type best validates this claim?

Answer: Peer-reviewed comparative studies

Peer-reviewed comparative studies provide objective, vetted evidence that compares the new product against existing standards under controlled conditions.

In evidence-based aquatic facility management, which source of information carries the LEAST scientific weight?

Answer: Anecdotal reports from facility staff

Anecdotal reports are based on personal experience and lack the controlled conditions needed to establish cause-and-effect relationships.

A CPO wants to evaluate whether a new filtration media reduces Cryptosporidium counts. Which measurement approach is most appropriate?

Answer: Standard microbiological testing before and after

Standard microbiological testing directly measures pathogen counts and provides objective, quantifiable data needed to assess filtration effectiveness.

What does 'statistical significance' mean in a study on pool water treatment outcomes?

Answer: The observed difference is unlikely due to chance alone

Statistical significance (typically p<0.05) means the probability that the observed result occurred by chance is less than 5%, indicating a real effect.

Which organization is the PRIMARY source for evidence-based guidelines on public pool operation in the United States?

Answer: Centers for Disease Control and Prevention (CDC)

The CDC's Healthy Swimming Program develops and publishes evidence-based guidelines for healthy and safe recreational water environments in the US.