Chapter 12: t Tests

Flashcards about t-tests

__ compare a sample mean to the population mean when the population standard deviation is not known.

Single-Sample t Tests

If the sample and the population standard deviation is known, it is best to use a __ rather than the z test.

t test

__ are one independent variable with two levels (between-subjects).

t Tests Between Independent Sample Means

The standard deviation of the distribution of the differences between sample means is called the __ of the difference between independent sample means.

standard error

__ compared means between two related sample means (within-subjects).

t tests for Correlated Samples

The standard error of the difference is reduced by the __ (standard error of the difference between correlated sample means).

fewer participants

Sample size plays a major __ in power and t tests.

role

The __ is used for one sample.

Single-Sample t Test

For two samples that are independent, use the __.

t Test for Between Two Independent Sample Means

For two samples that are correlated, use the __.

t Test for Correlated Samples