Statistical Methods for Psychologists

Documentation for package ‘statpsych’ version 1.5.0

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-- C --

ci.2x2.mean.bs	Computes tests and confidence intervals of effects in a 2x2 between-subjects design for means
ci.2x2.mean.mixed	Computes tests and confidence intervals of effects in a 2x2 mixed design for means
ci.2x2.mean.ws	Computes tests and confidence intervals of effects in a 2x2 within-subjects design for means
ci.2x2.median.bs	Computes tests and confidence intervals of effects in a 2x2 betwen-subjects design for medians
ci.2x2.median.mixed	Computes confidence intervals in a 2x2 mixed design for medians
ci.2x2.median.ws	Computes confidence intervals in a 2x2 within-subjects design for medians
ci.2x2.prop.bs	Computes tests and confidence intervals of effects in a 2x2 between- subjects design for proportions
ci.2x2.prop.mixed	Computes tests and confidence intervals of effects in a 2x2 mixed factorial design for proportions
ci.2x2.stdmean.bs	Computes confidence intervals of standardized effects in a 2x2 between-subjects design for means
ci.2x2.stdmean.mixed	Computes confidence intervals of standardized effects in a 2x2 mixed design
ci.2x2.stdmean.ws	Computes confidence intervals of standardized effects in a 2x2 within-subjects design
ci.agree	Confidence interval for a G-index of agreement
ci.agree.3rater	Computes confidence intervals for a 3-rater design with dichotomous ratings
ci.agree2	Confidence interval for G-index difference in a 2-group design
ci.bayes.normal	Bayesian credible interval for a normal prior distribution
ci.bayes.prop1	Bayesian credible interval for a single proportion
ci.biphi	Confidence interval for a biserial-phi correlation
ci.cod1	Confidence interval for a single coefficient of dispersion
ci.cod2	Confidence interval for a ratio of dispersion coefficients in a 2-group design
ci.condslope	Confidence interval for conditional (simple) slopes in a linear model
ci.condslope.log	Confidence interval for conditional (simple) slopes in a logistic model
ci.cor	Confidence interval for a Pearson or partial correlation
ci.cor.dep	Confidence interval for a difference in dependent Pearson correlations
ci.cor2	Confidence interval for a 2-group Pearson correlation difference
ci.cor2.gen	Confidence interval for a 2-group correlation difference
ci.cqv1	Confidence interval for a single coefficient of quartile variation
ci.cramer	Confidence interval for Cramer's V
ci.cronbach	Confidence interval for a Cronbach reliability
ci.cronbach2	Confidence interval for a difference in Cronbach reliabilities in a 2-group design
ci.cv1	Confidence interval for a single coefficient of variation
ci.etasqr	Confidence interval for eta-squared
ci.fisher	Fisher confidence interval
ci.indirect	Confidence interval for an indirect effect
ci.kappa	Confidence interval for a kappa reliability
ci.lc.gen.bs	Confidence interval for a linear contrast of parameters in a between-subjects design
ci.lc.glm	Confidence interval for a linear contrast of general linear model parameters
ci.lc.mean.bs	Confidence interval for a linear contrast of means in a between-subjects design
ci.lc.median.bs	Confidence interval for a linear contrast of medians in a between-subjects design
ci.lc.prop.bs	Confidence interval for a linear contrast of proportions in a between- subjects design
ci.lc.reg	Confidence interval for a linear contrast of regression coefficients in multiple group regression model
ci.lc.stdmean.bs	Confidence interval for a standardized linear contrast of means in a between-subjects design
ci.lc.stdmean.ws	Confidence interval for a standardized linear contrast of means in a within-subjects design
ci.mad1	Confidence interval for a single mean absolute deviation
ci.mann	Confidence interval for a Mann-Whitney parameter
ci.mape1	Confidence interval for a mean absolute prediction error
ci.mape2	Confidence interval for a ratio of mean absolute prediction errors in a 2-group design
ci.mean.ps	Confidence interval for a paired-samples mean difference
ci.mean1	Confidence interval for a single mean
ci.mean2	Confidence interval for a 2-group mean difference
ci.median.ps	Confidence interval for a paired-samples median difference
ci.median1	Confidence interval for a single median
ci.median2	Confidence interval for a 2-group median difference
ci.oddsratio	Confidence interval for an odds ratio
ci.pairs.prop.bs	Bonferroni confidence intervals for all pairwise proportion differences in a between-subjects design
ci.pairs.prop1	Confidence intervals for pairwise proportion differences of a polychotomous variable
ci.pbcor	Confidence interval for a point-biserial correlation
ci.phi	Confidence interval for a phi correlation
ci.popsize	Confidence interval for an unknown population size
ci.prop.ps	Confidence interval for a paired-samples proportion difference
ci.prop1	Confidence interval for a single proportion
ci.prop1.inv	Confidence interval for a single proportion using inverse sampling
ci.prop2	Confidence interval for a 2-group proportion difference
ci.prop2.inv	Confidence interval for a 2-group proportion difference using inverse sampling
ci.pv	Confidence intervals for positive and negative predictive values with retrospective sampling
ci.random.anova1	Confidence intervals for parameters of one-way random effects ANOVA
ci.ratio.cv2	Confidence interval for a ratio of coefficients of variation in a 2-group design
ci.ratio.mad.ps	Confidence interval for a paired-sample MAD ratio
ci.ratio.mad2	Confidence interval for a 2-group ratio of mean absolute deviations
ci.ratio.mean.ps	Confidence interval for a paired-samples mean ratio
ci.ratio.mean2	Confidence interval for a 2-group mean ratio
ci.ratio.median.ps	Confidence interval for a paired-samples median ratio
ci.ratio.median2	Confidence interval for a 2-group median ratio
ci.ratio.prop.ps	Confidence interval for a paired-samples proportion ratio
ci.ratio.prop2	Confidence interval for a 2-group proportion ratio
ci.ratio.sd2	Confidence interval for a 2-group ratio of standard deviations
ci.rel2	Confidence interval for a 2-group reliability difference
ci.reliability	Confidence interval for a reliability coefficient
ci.rsqr	Confidence interval for squared multiple correlation
ci.sign1	Confidence interval for the parameter of the one-sample sign test
ci.slope.mean.bs	Confidence interval for the slope of means in a single-factor design with a quantitative between-subjects factor
ci.slope.prop.bs	Confidence interval for a slope of a proportion in a single-factor design with a quantitative between-subjects factor
ci.spcor	Confidence interval for a semipartial correlation
ci.spear	Confidence interval for a Spearman correlation
ci.spear2	Confidence interval for a 2-group Spearman correlation difference
ci.stdmean.ps	Confidence interval for a paired-samples standardized mean difference
ci.stdmean.strat	Confidence interval for a 2-group standardized mean difference with stratified sampling
ci.stdmean1	Confidence interval for a single standardized mean
ci.stdmean2	Confidence interval for a 2-group standardized mean difference
ci.tetra	Confidence interval for a tetrachoric correlation
ci.theil	Theil-Sen estimate and confidence interval for slope
ci.tukey	Tukey-Kramer confidence intervals for all pairwise mean differences in a betwen-subjects design
ci.var.upper	Upper confidence limit of variance
ci.yule	Confidence intervals for generalized Yule coefficients

-- E --

etasqr.adj	Bias adjusts an eta-squared estimate
etasqr.gen.2way	Generalized eta-squared estimates in a two-factor design

-- I --

iqv	Indices of qualitative variation

-- P --

pi.score.ps	Prediction interval for difference of scores in a 2-level within-subjects experiment
pi.score1	Prediction interval for one score
pi.score2	Prediction interval for a difference of scores in a 2-group experiment
pi.var.upper	Upper prediction limit for an estimated variance
power.cor1	Approximates the power of a correlation test for a planned sample size
power.cor2	Approximates the power of a test for equal correlations in a 2-group design for planned sample sizes
power.lc.mean.bs	Approximates the power of a test for a linear contrast of means for planned sample sizes in a between-subjects design
power.mean.ps	Approximates the power of a paired-samples t-test for a planned sample size
power.mean1	Approximates the power of a one-sample t-test for a planned sample size
power.mean2	Approximates the power of a two-sample t-test for planned sample sizes
power.prop.ps	Approximates the power of a paired-samples test of equal porportions for a planned sample size
power.prop1	Approximates the power of a one-sample proportion test for a planned sample size
power.prop2	Approximates the power of a two-sample proportion test for planned sample sizes

-- R --

random.sample	Generate a random sample
random.y	Generate random sample of scores
random.yx	Generates random bivariate scores
randomize	Randomize a sample into groups

-- S --

sim.ci.cor	Simulates confidence interval coverage probability for a Pearson correlation
sim.ci.mean.ps	Simulates confidence interval coverage probability for a paired-samples mean difference
sim.ci.mean1	Simulates confidence interval coverage probability for single mean
sim.ci.mean2	Simulates confidence interval coverage probability for a 2-group mean difference
sim.ci.median.ps	Simulates confidence interval coverage probability for a median difference in a paired-samples design
sim.ci.median1	Simulates confidence interval coverage probability for single median
sim.ci.median2	Simulates confidence interval coverage probability for a median difference in a 2-group design
sim.ci.spear	Simulates confidence interval coverage probability for a Spearman correlation
sim.ci.stdmean.ps	Simulates confidence interval coverage probability for a standardized mean difference in a paired-samples design
sim.ci.stdmean2	Simulates confidence interval coverage probability for a standardized mean difference in a 2-group design
size.ci.agree	Sample size for a G-index confidence interval
size.ci.condmean	Sample size for a conditional mean confidence interval
size.ci.cor	Sample size for a Pearson or partial correlation confidence interval
size.ci.cronbach	Sample size for a Cronbach reliability confidence interval
size.ci.cronbach2	Sample size for a 2-group Cronbach reliability difference confidence interval
size.ci.etasqr	Sample size for an eta-squared confidence interval
size.ci.indirect	Sample size for an indirect effect confidence interval
size.ci.lc.ancova	Sample size for a linear contrast confidence interval in an ANCOVA
size.ci.lc.mean.bs	Sample size for a between-subjects mean linear contrast confidence interval
size.ci.lc.mean.ws	Sample size for a within-subjects mean linear contrast confidence interval
size.ci.lc.prop.bs	Sample size for a between-subjects proportion linear contrast confidence interval
size.ci.lc.stdmean.bs	Sample size for a between-subjects standardized linear contrast of means confidence interval
size.ci.lc.stdmean.ws	Sample size for a within-subjects standardized linear contrast of means confidence interval
size.ci.mape1	Sample size for a mean absolute prediction error confidence interval
size.ci.mean.ps	Sample size for a paired-samples mean difference confidence interval
size.ci.mean1	Sample size for a single mean confidence interval
size.ci.mean2	Sample size for a 2-group mean difference confidence interval
size.ci.pbcor	Sample size for a point-biserial correlation confidence interval
size.ci.prop.ps	Sample size for a paired-sample proportion difference confidence interval
size.ci.prop1	Sample size for a single proportion confidence interval
size.ci.prop2	Sample size for a 2-group proportion difference confidence interval
size.ci.ratio.mean.ps	Sample size for a paired-samples mean ratio confidence interval
size.ci.ratio.mean2	Sample size for a 2-group mean ratio confidence interval
size.ci.ratio.prop.ps	Sample size for a paired-samples proportion ratio confidence interval
size.ci.ratio.prop2	Sample size for a 2-group proportion ratio confidence interval
size.ci.rsqr	Sample size for a squared multiple correlation confidence interval
size.ci.second	Sample size for a second-stage confidence interval
size.ci.slope	Sample size for a slope confidence interval
size.ci.spear	Sample size for a Spearman correlation confidence interval
size.ci.stdmean.ps	Sample size for a paired-samples standardized mean difference confidence interval
size.ci.stdmean2	Sample size for a 2-group standardized mean difference confidence interval
size.equiv.mean.ps	Sample size for a paired-samples mean equivalence test
size.equiv.mean2	Sample size for a 2-group mean equivalence test
size.equiv.prop.ps	Sample size for a paired-samples proportion equivalence test
size.equiv.prop2	Sample size for a 2-group proportion equivalence test
size.interval.cor	Sample size for a finite interval test of a Pearson or partial correlation
size.supinf.mean.ps	Sample size for a paired-samples mean superiority or noninferiority test
size.supinf.mean2	Sample size for a 2-group mean superiority or noninferiority test
size.supinf.prop.ps	Sample size for a paired-samples superiority or inferiority test of proportions
size.supinf.prop2	Sample size for a 2-group superiority or inferiority test of proportions
size.test.cor	Sample size for a test of a Pearson or partial correlation
size.test.cor2	Sample size for a test of equal Pearson or partial correlation in a 2-group design
size.test.cronbach	Sample size to test a Cronbach reliability
size.test.cronbach2	Sample size to test equality of Cronbach reliability coefficients in a 2-group design
size.test.lc.ancova	Sample size for a mean linear contrast test in an ANCOVA
size.test.lc.mean.bs	Sample size for a test of a between-subjects mean linear contrast
size.test.lc.mean.ws	Sample size for a test of a within-subjects mean linear contrast
size.test.lc.prop.bs	Sample size for a test of between-subjects proportion linear contrast
size.test.mann	Sample size for a Mann-Whitney test
size.test.mean.ps	Sample size for a test of a paired-samples mean difference
size.test.mean1	Sample size for a test of a single mean
size.test.mean2	Sample size for a test of a 2-group mean difference
size.test.prop.ps	Sample size for a test of a paired-samples proportion difference
size.test.prop1	Sample size for a test of a single proportion
size.test.prop2	Sample size for a test of a 2-group proportion difference
size.test.sign.ps	Sample size for a paired-samples Sign test
size.test.sign1	Sample size for a 1-sample Sign test
size.test.slope	Sample size for a test of a slope
slope.contrast	Contrast coefficients for the slope of a quantitative factor
spearmanbrown	Computes the reliability of a scale with r2 measurements given the reliability of a scale with r1 measurements

-- T --

test.anova1.bs	Between-subjects F statistic and eta-squared from summary information
test.kurtosis	Computes p-value for test of excess kurtosis
test.mono.mean.bs	Test of a monotonic trend in means for an ordered between-subjects factor
test.mono.prop.bs	Test of monotonic trend in proportions for an ordered between-subjects factor
test.prop.bs	Hypothesis test of equal proportions in a between-subjects design
test.prop.ps	Hypothesis test for a paired-samples proportion difference
test.prop1	Hypothesis test for a single proportion
test.prop2	Hypothesis test for a 2-group proportion difference
test.skew	Computes p-value for test of skewness