You Compute Difference Scores for Several Different Tests

question 50

Multiple Choice

You compute difference scores for several different tests. You look for "significant differences" in scores, say at the ".05 level." What generalization should you keep in mind as you make multiple comparisons?

• A) The fewer comparisons you make, the more likely you'll find a significant difference.
• B) The more comparisons you make, the more likely you'll find a significant difference.
• C) As long as you keep the .05 level, your chance of finding a significant difference remains the same.
• D) If you change to the .01 level, your chance of finding a significant difference remains the same.

Understand the role of the cerebellum and related structures in balance and movement.

Describe the process and neural pathways involved in voluntary movement.

Explain the concept of referred pain and its clinical significance.

Understand the neurological disorders affecting movement and somatosensory functions.

---

Definitions:

Confidence Interval

A span of numbers, extracted from statistics of a sample, which is probably going to include the value of an unseen population parameter, with a specified level of certainty.

Population Variances

Statistical measures that quantify the spread or dispersion within a set of population data values.

Antioxidants

Substances that can prevent or slow damage to cells caused by free radicals, often found in fruits and vegetables.

Pooled Proportion Estimate

A method used to estimate a common proportion by combining the sample proportions from different samples into a weighted average.