Health research methodologies

Bias

100

I really, really, want to make you happy.

Social desirability bias

200

Hey, you didn't pick me!

Selection bias

300

Oh! I dropped out.

Attrition bias

400

Remember 3 months ago, I do.

Recall bias

500

This is how I should behave.

Performance bias

Study designs

100

Click!!

Cross-sectional study

200

That's so random, right?

Randomized controlled trial

300

The past is the past!

Retrospective cohort study

400

Really, three's enough.

Case reports

500

I try new things, but I'm not random.

Quasi-experimental study designs

Sampling

100

Just pick a number!!

Simple random sampling

200

Anyone is welcome!

Convenience

300

I only want the nth person.

Sequential sampling

400

I gotta focus on what I'm missing.

Quota sampling

500

I'm going to pick you in this group, you in this other group, and then you in this third group.

Stratified sampling

Literature review

100

I'm just doing a broad overview.

Narrative review

200

Be specific, specific sheets, specific question, specific...

Systematic review

300

I can be systematic, but I'm also exploratory.

Scoping review

400

Get done, quick!

Rapid review

500

Context, mechanisms and outcomes

Realist review

Data collection

100

These reminders are encouraging me.

Dillman method

200

Let's talk, one-on-one.

Interview

300

I'll call you!!

CATI

400

Let's join the group and chat!

Focus group

500

??????

Questionnaire