Name: Score:
45 Multiple choice questions
Definition 1 of 45
A theorem which states that for any population with mean and standard deviation , the
distribution of sample means for sample size N will have a mean of and a standard deviation of
/ and will approach a normal distribution as N approaches infinity.
Correlational Method
Inferential Statistics
Central Limit Theorem
Correlation Coefficients
Definition 2 of 45
an alternative hypothesis in which the researcher predicts the direction of the expected
difference between the groups
Two-tailed Hypothesis (Non-directional Hypothesis)
Alternative Hypothesis (Research Hypothesis)
One-tailed Hypothesis (Directional Hypothesis)
Null Hypothesis
Definition 3 of 45
a relationship between two variables in which both variables either increase or decrease
together
Positive Correlation
Correlation Coefficients
Partial Correlation
Sampling Distribution
,Definition 4 of 45
An indication of the strength of the relationship between two variables.
Parametric tests
Estimated Standard Error of the Mean
Magnitude
Sampling Distribution
Definition 5 of 45
Statistics that involve the use of procedures for drawing conclusions based on the scores
collected in a research study and going beyond them to make conclusions (inferences) about
a population.
Critical Value
Correlation Coefficients
Statistical Significance
Inferential Statistics
Definition 6 of 45
The hypothesis predicting that no difference exists between the groups being compared.
Type II Error
Hypothesis Testing
One-tailed Hypothesis (Directional Hypothesis)
Null Hypothesis
,Definition 7 of 45
A parametric inferential statistical test of the null hypothesis for a single sample where the
population variance is not known.
Magnitude
Student's t-distribution
Scatterplot
t test
Definition 8 of 45
The value of a test statistic (for example a z-test) that marks the edge of the region of rejection
in a sampling distribution where values equal to it or beyond it fall in the region of rejection.
Partial Correlation
Phi Coefficient
Coefficient of Determination
Critical Value
Definition 9 of 45
An interval of a certain width that we feel confident will contain μ.
Estimated Standard Error of the Mean
Single-group Design
Confidence Interval
Positive Correlation
, Definition 10 of 45
A correlation coefficient for use when both variables are measured on an interval or ratio
scale.
Positive Correlation
Spearman's Rank-order Correlation Coefficient
Pearson Product-moment Correlation Coefficient
Sampling Distribution
Definition 11 of 45
A measure of the proportion of variance in one of the variables that is accounted for by the
other variable; calculated by squaring the correlation coefficient.
Correlation Coefficients
Region of Rejection
Coefficient of Determination
Statistical Significance
Definition 12 of 45
A distribution of sample means based on random samples of a fixed size from a population.
Third Variable Problem
Confidence Interval
Sampling Distribution
Single-group Design
45 Multiple choice questions
Definition 1 of 45
A theorem which states that for any population with mean and standard deviation , the
distribution of sample means for sample size N will have a mean of and a standard deviation of
/ and will approach a normal distribution as N approaches infinity.
Correlational Method
Inferential Statistics
Central Limit Theorem
Correlation Coefficients
Definition 2 of 45
an alternative hypothesis in which the researcher predicts the direction of the expected
difference between the groups
Two-tailed Hypothesis (Non-directional Hypothesis)
Alternative Hypothesis (Research Hypothesis)
One-tailed Hypothesis (Directional Hypothesis)
Null Hypothesis
Definition 3 of 45
a relationship between two variables in which both variables either increase or decrease
together
Positive Correlation
Correlation Coefficients
Partial Correlation
Sampling Distribution
,Definition 4 of 45
An indication of the strength of the relationship between two variables.
Parametric tests
Estimated Standard Error of the Mean
Magnitude
Sampling Distribution
Definition 5 of 45
Statistics that involve the use of procedures for drawing conclusions based on the scores
collected in a research study and going beyond them to make conclusions (inferences) about
a population.
Critical Value
Correlation Coefficients
Statistical Significance
Inferential Statistics
Definition 6 of 45
The hypothesis predicting that no difference exists between the groups being compared.
Type II Error
Hypothesis Testing
One-tailed Hypothesis (Directional Hypothesis)
Null Hypothesis
,Definition 7 of 45
A parametric inferential statistical test of the null hypothesis for a single sample where the
population variance is not known.
Magnitude
Student's t-distribution
Scatterplot
t test
Definition 8 of 45
The value of a test statistic (for example a z-test) that marks the edge of the region of rejection
in a sampling distribution where values equal to it or beyond it fall in the region of rejection.
Partial Correlation
Phi Coefficient
Coefficient of Determination
Critical Value
Definition 9 of 45
An interval of a certain width that we feel confident will contain μ.
Estimated Standard Error of the Mean
Single-group Design
Confidence Interval
Positive Correlation
, Definition 10 of 45
A correlation coefficient for use when both variables are measured on an interval or ratio
scale.
Positive Correlation
Spearman's Rank-order Correlation Coefficient
Pearson Product-moment Correlation Coefficient
Sampling Distribution
Definition 11 of 45
A measure of the proportion of variance in one of the variables that is accounted for by the
other variable; calculated by squaring the correlation coefficient.
Correlation Coefficients
Region of Rejection
Coefficient of Determination
Statistical Significance
Definition 12 of 45
A distribution of sample means based on random samples of a fixed size from a population.
Third Variable Problem
Confidence Interval
Sampling Distribution
Single-group Design
