Sanjay Scored 100% on a Written Test on How to Insert

question 135

Multiple Choice

Sanjay scored 100% on a written test on how to insert an IV. But when attempting to insert an IV in a patient's veins, he made several attempts before succeeding. What does the written test lack

• A) internal validity
• B) external validity
• C) reliability
• D) generalizability

---

Definitions:

Critical Values

Specific points on the scale of a statistical distribution that are associated with a specified significance level, used for hypothesis testing.

Rejection Regions

Specific areas in the distribution of a test statistic that, if the observed test statistic falls within, will lead to the rejection of the null hypothesis.

Standardized Test Statistic

A calculated statistic that measures the number of standard deviations a sample statistic lies from the null hypothesis, used in hypothesis testing.

Hypotheses

Statements set up for a statistical test that express the relationship between variables. There is usually a null hypothesis (no effect) and an alternative hypothesis (effect present).