Exam 9: More About Using Statistics

"One-way ANOVA" test analyzes ______ subject variable(s).

If a researcher wishes to predict the score on one measured variable from the score on another measured variable, the appropriate statistical test is ______.

Discuss the Pearson r statistic. What type of relationships does it measure?

Violations of the sphericity assumption can decrease the chance of a Type I error.

There are ______ types of t tests used to compare means.

Samples with low variability often contain extreme scores that could affect the sample mean, giving a sample mean that is not very similar to the population mean.

A quasi-experiment was conducted to compare men's and women's attitudes about extramarital affairs. Men and women who are married were recruited to complete a survey about their attitudes. The researchers then compared scores on the survey for men and women. The appropriate statistical test to analyze the data in this study is ______.

Variability of the sample indicates the amount of ______ presents because samples with high variability are less likely to be good representations of the population.

A researcher was interested in the effect of anxiety on intelligence measurement. A group of 100 individuals were placed in an anxiety-provoking situation before being given an IQ test. The scores for this group were then compared to the IQ population mean of 100. The appropriate statistical test to analyze the data in this study is ______.

The first question to address about the study design in identifying the correct statistical test is to ______.

Discuss analysis of variance including main effects, interaction effects, and post hoc tests.

Mauchly's test is an assumption that pairs of scores in the population have similar variability.

The probability level used by researchers to indicate the cutoff probability level (highest value) that will allow them to reject the null hypothesis is called ______.

Statistical tests for effects are based on a ratio of the size of the difference in the sample means and sampling error to allow us to determine what part of the mean difference is due to the effect and which part is due to sampling error.

In experiments and quasi-experiments, hypotheses about effects are often tested by comparing groups (e.g., men and women) or conditions.

Additional significance tests conducted to determine which means are significantly different for a main effect are called ______.

An experiment was conducted to compare participant responses to two different social situations. All participants viewed a scene with two children playing cooperatively and a scene with two children arguing while playing. Participants responded to a questionnaire measuring anxiety after viewing each scene to determine if the type of scene viewed had an effect on anxiety scores. The appropriate statistical test to analyze the data in this study is ______.

When entering data into SPSS for a within-subjects study, one should always enter ______.

A Bonferroni and Tukey tests are SPSS options for ______ test of mean differences.

A developmental psychologist conducted an experiment to examine the effect of type of text used on math performance across age groups. Fifth grade and college students studied age-appropriate math concepts using either a traditional hard copy book text or an e-text available on the web. Performance on a math test of the concepts studied was then measured for all students. The appropriate statistical test to analyze the data in this study is ______.