Exam 15: Data Exploration, Part 2: Inferential Statistics

The hypothesis that we are attempting to reject is the

Dr. Bryant gave 40 people a story to read that evoked one of four emotions sad, happy, angry, neutral) then evaluated the number of words that they could remember in a short-term memory task. The degrees of freedom associated with the between-conditions variability for this experiment would be

Which of the following is the best example of empirical data?

If you have made a mistake in your interpretation of your experiment and reject the null hypothesis when it is actually true, you have

When you want to analyze an experiment with only two conditions in which continuous data has been collected _______ is appropriate.

When you want to analyze an experiment with three conditions in which continuous data has been collected _______ is appropriate.

The Chi-Square statistic is used to make decisions about __________ variables

The value of the F-ratio obtained in an experiment is evaluated against

A ____________ is a quantity calculated from a ____________

A contingency table is used in calculating

In an experiment, Alpha

Effect size

The sampling distribution has a smaller _________ than the population distribution

Cohen's d is a measure of

A correlation of -0.82 between two variables would reflect

When there is no experimental effect

All data sets contain a certain amount of

The statistic that compares the expected frequencies to observed frequencies is

Dr. Johns was interested in the effect of auditory noise on visual attention. She ran an experiment in which she gave people either an easy visual search task or a hard visual search task while a siren was going off and measured the reaction time. Dr. Johns could analyze her experiment using

The sum of squares is actually