statistical tests

1) parametric

2) random samples from two independent groups

3) continuous data

4) compares means

example: 2 diff study methods result in diff test grades ( 2 groups, 1 exam)

• Anova

• student t test

• parametric/paired t test

1) parametric

2) determines differences between the same individuals ( dependent or paired)

3) dependent variable is normally distributed and continuous data

4) compares means

example: 2 diff study methods result in 2 diff test grades ( 1 group, 2 exams)

• Anova

• student t test

• parametric/paired t test

1) parametric

2) compares means from 3 diff or more independent smaples.

3)can also compare means from 3 diff or more dependent variables

4) dependent variable is normally distributed and continuous data

• Anova

• student t test

• parametric/paired t test

Tags

NGSS.HS-LS4-3

in which test is the  Bonferroni correction is done to determine what groups the difference exists between?

• Anova

• student t test

• parametric/paired t test

1) non-parametric

2) compares medians from2 independent samples.

3)can be used for dependent variables that are non-normally distributed continuous and ordinal data

4) example: comparing patient satisfaction following total hip replacement-likert-scale rank to satisfaction

• Mann whitney U/wilcoxon rank sum test

• wilcoxon signed ranks

• kruskal-walls

1) non-parametric version of paired t-test

2) compares medians from 2 dependent samples.

3)can be used for dependent variables that are non-normally distributed continuous and ordinal data

4) example: difference between pre-test and post test scores prior to a rotation all students take a quiz and at the end of the rotation students take the same quiz

• Mann whitney U/wilcoxon rank sum test

• wilcoxon signed ranks

• kruskal-walls

1) non-parametric version of Anova test

2) compares medians from 3 or more independent samples.

3)can be used for dependent variables that are non-normally distributed continuous and ordinal data

4) example: study comparing if preceptors feel they have adequate time to dedicate to their pharmacy student based on region, likert scale

• Mann whitney U/wilcoxon rank sum test

• wilcoxon signed ranks

• kruskal-wallis

normally distributed continuous data

• parametric

• non-parametric

non-normally distributed continuous data

• parametric

• non-parametric

• •Compares proportions

  •Can compare two or more independent samples

  •When sample sizes are small, and the expected frequencies in one or more cells of a contingency table are less than 5

  •Only used for dependent variables that are nominal data

• chi-square test

• McNemar

• Fisher's Exact Test