SWK 605 FINAL EXAM REVIEW

The best way we have to handle missing data is/are:

What are the mean and SD for a Z-statistic distribution?

W/ the bivariate regression formula, what is the mean value of the DV when the IV equals 0?

________ is the probability of correctly rejecting a null hypothesis.

What is the appropriate graph for correlation coefficients (two continuous variables)?

What is the gold standard for testing hypotheses with categorical variables when N< 30?

If the direction of a hypothesis is not specified then....

The strength and direction of the relationship between variables is

Which of these refers to the discrepancy between values in a population & values in a sample?

What is an assumption for the general linear model?

Which refers to a range with a specified probab. of containing the true value of pop parameter?

Parameters, also called true values, describe characteristics of a _____.

For a dichotomous variable, how would you depict that visually?

What is the critical value on a z-distribution for a directional hypothesis?

Parameters are symbolized by ____ letters, while Statistics are symbolized by ____ letters.

What type of graph do you use for a crosstabulation?

Statistic used to test hypotheses concerning the difference btw sample mean & population mean?

Failing to reject the null hypothesis when it is actually false.....

Why is a planned comparison better than an unplanned comparison?

Type of statistics concerned w/ making general statements about a population based on a sample:

Given same ES, as sample size (N) increases, p value will ______ & test statistic will _____

_______are used to identify outliers.

A correlation coefficient of 0 means there is no relationship between variables.

Bivariate linear regression is used with one continuous DV and one IV of which type?

Refers to any characteristic that different people/systems could have in different quantities?

Rejecting the null hypothesis when it is actually true is...

Level of measurement indicated by responses like: Protestant, Catholic, Jewish, Muslim, Other

What tells us if outliers we find our influential?

The alternative hypothesis and null hypothesis should be mutually exclusive & exhaustive.

Which of these isn't sensitive to extreme scores?

A statement about the relationship btw variables & how we think things work.

If a continuous variable is skewed, then use this measure of central tendency:

The average change in the DV in SD units associated with a 1 SD unit increase in the IV...

What points divide the rejection region of a z-distribution from the non-rejection region?

Statistics, also called estimated values, describe characteristics of a _________.

What are the critical values on a z-distribution for a non-directional hypothesis?

Concept where variance of errors in sample is same as across groups in population

What is the SD of the sampling distribution of the mean of a statistic?

What does R² indicate?

What type of variables are displayed in a crosstabulation?

This is a sample with the same characteristics as the population from which it was selected:

What type of graph should you use to depict a single continuous variable?

Probability of a Type 1 Error, AKA alpha, is generally specified at what level of significance?

Tentative propositions about the relationships between 2 or more variables are...

Which of these are characteristics of a normal distribution?

The average change in the DV associated with a one point increase in the IV is the....

What is the best measure of central tendency for an ordinal variable?

Level of measurement indicated by for example: 0) Never 1) Sometimes 2)Mostly 3) Always

Quantitative variables that can take on any value within limits of the variable?

In a distribution is positively skewed, how will the mean compare to the median?

If p > .05 we accept the null hypothesis.

If causes of missingness are not taken into account, missingness is __ and __ will occur.

What are the assumptions for Pearson's Chi-square?

If p < .05 we reject the null hypothesis

Level of measurement, for example, number of children: 0, 1, 2, 3, 4, 5+

Type of sampling where all members of a population have the same probability of selection

Which type of variables include a finite number of indivisible values?

A residual is the ____ for a person minus the ____ for a person.

Which of the following practices is the most important for making causal inferences?