The probability that the results of an experiment will allow rejection of the null hypothesis if the IV has a real effect.
Hint 1: Also, 1 - Beta.
Hint 2: Impacted by (a) effect size, (b) sample size, and (c) alpha
What is Power?
100
A research design in which one sample of individuals is measured more than once on the same dependent variable
What is a repeated measures or within subject design?
100
Used to compare a sample mean to a population mean using the population standard deviation.
What is a z test?
100
Failing to reject the null when the IV had an effect.
What is a Type II error?
100
The size of a difference between two means in standard deviation units.
What is cohen's d effect size?
200
A range of values that probably contains the population value OR
A range of values that probably contains the size of the real difference between to means.
What is a confidence interval?
200
A research design in which each individual is matched with a participant in the other sample. Tested by examining difference scores.
What is a matched-subjects or paired-subjects design?
200
Used to test the null hypothesis that the mean at time 1 is the same as the mean at time 2, which is the same as the mean at time 3.
What is a repeated measures ANOVA?
200
This test is used to assess the mean differences between two groups. There are 5 participants in each group. The number of degrees of freedom is 8.
What is an independent t-test?
200
The annotation for number of groups.
What is k?
300
Distribution that looks like a z distribution as N (sample size) increases.
What is the t distribution?
300
Two independent variables: (1) affect and (2) music.
(1) affect has 3 levels: Happy, Excited, and Sad.
(2) music has 2 levels: Soft Rock and Hard Rock.
(name the factorial design)
What is a 3X2 design?
300
Tests the following design:
Two independent groups of athletes go through either all-carbs diet or gluten-free diet. Performance on the track is measured (time taken to run 1 mile).
What is Independent-sample t-test?
300
You visually display your result by running a 2X2 ANOVA. You graph the effects of both IVs. You see evidence of this result because your lines cross and form an "X". (name the result)
What is an interaction?
300
Similar to a z test but relies on the standard deviation of the sample.
What is a single-sample t-test?
400
The test used to determine the assumption of equal variances.
What is Levene's Test? OR What is the test of homogeneity of variances?
400
Experiment style that uses two groups. Independent random assignment is its cornerstone.
What is a simple experiment?
400
Tests this alternative hypothesis:
Individuals in the loud noise condition will perform worst than those in the no-noise or light noise condition
What is One-way ANOVA?
400
Calculated by dividing variance between groups by variance within groups.
Hint: Variance = Mean Square (MS)
What is F obtained or F ratio?
400
This type of error rate is the probability of making a Type I error for any of the possible comparisons. Newman-Keuls test maintains this error rate at alpha.
What is comparison-wise?
500
The number of scores in a sample that can vary.
What are the degrees of freedom?
500
In addition to assessing two main effects, the 2X2 factorial design can be used to assess whether the effects of one variable depends on the level of another variable, or a(n)_________.
What is an interaction?
500
Tests the following design:
2 x 4
What is two-way ANOVA?
500
This effect size measure indicates whether the amount of variance explained in the DV by each IV is small, medium, or large.