Notebook AtlasSURG0002 · Research methods: go to the course map

AtlasSession 2L6: Hypothesis Testing and Statistical Testsp.48–51

Choosing a statistical test

  1. 1 earlier topics
  2. Data and types of variables
  3. Distribution of data
  4. Types of distribution
  5. Normal vs non-normal
  6. Choosing a statistical test

Fig. 1

Choosing a statistical test: the L6 p.51 table drawn as a flowchart (test names as printed)

Fig. 1: decision flowchart “Picking a test: three questions”. Case: Left and right knee of one rabbit. Each rabbit gets the new scaffold in its left knee and nothing in its right knee. Repair thickness is measured in both knees. Question: Is the result a yes/no label, or a measurement on a scale? Answers: 1 Yes/no label, 2 Measurement.

Case
Left and right knee of one rabbit
Question
label or measurement?
Your answers
none yet
How it’s going
— (answer the first question to see how it’s going)
Score
0/4 (no cases finished yet)

Decision Flowchart Walker · First look

this is the first questionthis is the first question
Case card

Level 1 · First look · Lecture 6 · p.48–51

See that picking a test is a short series of questions about your data.

Pick the right test from data type, normality, pairing and number of groups using the p.51 table.

  1. Right tool for the job (the step you are on)

    You don't weigh flour with a ruler; the kind of data picks the test family.

    You don’t weigh flour with a ruler: the kind of data picks the test. Case: Left and right knee of one rabbit. Now: label or measurement?

step 1/3