The t-test does not require any prior knowledge about the:

• A) Objectives
• B) Targeted population
• C) Population mean
• D) Sample size

Another assumption of the t-test is that the population must be:

• A) Randomized
• B) Skewed
• C) Normally distributed
• D) Large

All of the following are the assumptions of the independent-measures t-test, EXCEPT:

• A) The observations within each sample must be independent.
• B) The two populations from which the samples are selected must be normal.
• C) The two populations from which the samples are selected must have equal variances
• D) The selected sample must have unequal variances.

In t-statistics test, the larger the______________, the larger will be the error.

• A) Distribution
• B) Population size
• C) Sample size
• D) Standard deviation

Increasing the number of scores in a sample generally:

• A) Decreases power
• B) Increases power
• C) Reduces effect size
• D) Increases Type II errors

In the overall t formula M1-M2 calculates the:

• A) Sample mean difference
• B) Standard mean difference
• C) Population mean difference
• D) Overall result difference

Eta squared (η²) measures:

• A) Homogeneity of variances
• B) Normality of data
• C) Effect size in ANOVA
• D) Variance of population

What is meant by the power of a test?

• A) Ability to detect a true effect
• B) Width of confidence intervals
• C) Probability of Type I error
• D) Size of the sample

Which of the following test is used when the mean scores of two different groups of people or conditions are compared?

• A) Correlation test
• B) Independent sample t-test
• C) ANOVA test
• D) Dependent sample t-test

What does “two-way” in Two-Way ANOVA indicate?

• A) Two dependent variables
• B) Two tests
• C) Two independent variables
• D) Two samples

The main purpose of a two-way ANOVA is to test:

• A) Main effects and interaction effects
• B) Only one independent variable
• C) Post Hoc differences only
• D) Homogeneity of variance

How many variables are involved in partial correlation?

• A) Four variables
• B) Three variables
• C) Two variables
• D) One variable

How many variables are required to run correlation in SPSS?

• A) Three
• B) One
• C) Four
• D) Two

What is the range of correlation coefficient (r)?

• A) -1 to +1
• B) 0 to 100
• C) 0 to 1
• D) -10 to +10

What does a negative correlation indicate?

• A) Perfect relationship
• B) Opposite direction
• C) Same direction
• D) No relationship

Which of the following is designed for interval level (continuous) variables?

• A) The Pearson correlation
• B) t-test
• C) Regression
• D) Chi square

Which of the following tests are relevant only if we have more than two levels (groups) of an independent variable?

• A) Levene’s test
• B) z-test statistic
• C) t-test statistic
• D) Post-hoc tests

While interpreting the output of two-way ANOVA, a significant result (Sig. value less than .05) suggests that the variance of the dependent variable across the groups is:

• A) Not equal
• B) Partially equal
• C) Completely equal
• D) Randomly equal

In ANOVA, while interpreting results, the effect size for the independent variables is provided in the column labelled as:

• A) Partial Eta Squared
• B) Complete Eta Squared
• C) Std. Deviation Squared
• D) Mean Squared

What does SP stand for?

• A) Sum of products of deviations
• B) Sample proportion
• C) Sum of squares
• D) Standard parameter