Exam 14: Hypothesis Testing Revisited and Interpreting Results

The purpose of _________ statistics is to describe the dat

Replication employs a similar, but different, methodology than the original study.

When you have one independent variable with two or more levels, an ANOVA is used to look at the results.

A researcher rejects the null hypothesis when there is a statistically significant difference between the means of the groups in a study.

A researcher rejects the null hypothesis when there is not a statistically significant difference between the means of the groups in a study.

Mean, median, and mode are examples of descriptive statistics.

A researcher hypothesizes that men will consume more caffeine than women.After the study has concludes, the researcher finds that there is no difference between men and women p >.05).What decision should the researcher make?

Kathryn has completed a study and failed to reject the null hypothesis when the null hypothesis was false.Kathryn has made a _________.

A __________ distribution is one in which most scores cluster in the center and few, but equal numbers, are on the extremes.

It is possible to have more than one mode.

A researcher fails to reject the null hypothesis when there is not a statistically significant difference between the means of the groups in a study.

Normal distributions are symmetrical.

The mode is the most frequently occurring number in a data set.

Failing to reject the null hypothesis when it is

Inferential statistics are conducted with data sets with skewed distributions.

There are _____ possible outcomes to a study.

The lower the obtained p-value, the less likely the obtained differences in the results are due to chance.

Kathryn has completed a study and failed to reject the null when the null hypothesis was true.Kathryn has made a _________.

When do you reject the null hypothesis?

A Type II error occurs when a researcher fails to reject the null hypothesis even though the null hypothesis is false.