What does an alpha level of .05 represent?

• A) The probability of Type II error
• B) A 5% risk of committing a Type I error
• C) The probability of sample bias
• D) The probability of z > 3

While running one-way ANOVA, the data is entered in the _____________ editor.

• A) Data link tab of the SPSS
• B) Data coding tab of SPSS
• C) Data view tab of the SPSS
• D) Data view tab of excel

Under which of the following situations do the t-statistic permit hypothesis testing?

• A) The sample size is not known
• B) Population mean is known
• C) Population mean is not known
• D) Population variance is known

At α = .05, what are the critical z-score boundaries for a two-tailed test?

• A) ±1.96
• B) ±2.50
• C) ±1.65
• D) ±3.00

A researcher codes men as 1 and women as 2 in SPSS to compare their exam scores. Which variable is this?

• A) Grouping variable
• B) Test variable
• C) Dependent variable
• D) Control variable

The estimated standard error is inversely related to the:

• A) Number of hypothesis
• B) Sample size
• C) Distribution method
• D) Number of objectives

Degrees of freedom for factor B in two-way ANOVA is calculated as:

• A) kB – 1
• B) N – K
• C) N – 1
• D) kA – 1

In which of the following statistical test, the researcher can compare more than two groups?

• A) Neither ANOVA nor t-test
• B) ANOVA
• C) ANOVA and t-test both
• D) T-test statistic

If a continuous variable is recoded into three equal groups, it can be treated as:

• A) Continuous dependent variable
• B) Factorial design
• C) Categorical independent variable
• D) Covariate

How many samples are compared in an independent-samples t-test?

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

Which of the following tests are also known as non-directional tests?

• A) One-tailed hypothesis tests
• B) Two-tailed hypothesis tests
• C) True hypothesis tests
• D) Null hypothesis tests

Which SPSS test checks the assumption of equal variances between groups?

• A) Shapiro-Wilk Test
• B) Kolmogorov-Smirnov Test
• C) Levene’s Test
• D) Chi-Square Test

In the calculation of independent sample t-test, standard error is always expected because (of):

• A) Researcher is incompetent
• B) Researcher uses a tentative calculating formula
• C) Researcher extracts a representative sample
• D) Researcher studies the whole population

In t- test, which of the following is used to denote the amount of expected error?

• A) Mean error
• B) Population error
• C) Standard error
• D) Sample error

Reducing the _____________for a hypothesis test also reduces the power of the test.

• A) Significance level
• B) Beta level
• C) Alpha level
• D) Distribution level

Which test requires knowledge of population standard deviation?

• A) Chi-square test
• B) F-test
• C) t-test
• D) Z-test

Another name for an independent-measures design is:

• A) Repeated measures
• B) Within-subjects design
• C) Between-subjects design
• D) Matched pairs

The difference between population means is written as:

• A) M₁ – M₂
• B) n₁ – n₂
• C) SS₁ – SS₂
• D) 𝜇₁ – 𝜇₂

In which of the following method, the researcher can handle more than two independent variables?

• A) ANOVA
• B) Neither ANOVA nor t-test
• C) T-test statistic
• D) ANOVA and t-test both

In ANOVA, the dependent variable is always:

• A) Ordinal
• B) Continuous
• C) Categorical
• D) Nominal