Variables
Gender measured in the following categories (male, female) is an example of what type of variable?
What is a nominal variable?
A conversation between a researcher and research participant with a list of open-ended questions is this type of qualitative technique.
What is a semi-structured interview?
A sampling technique where each person has an equal probability of being selected.
What is a simple random sample?
A hypothesis that states there is no relationship between the treatment and the outcome
What is the null hypothesis?
A statistical test for 2 nominal variables
What is a chi-squared test?
An SAT score is an example of what type of variable?
What is an interval variable?
A 1-2 hour conversation with 8-10 purposively sampled research participants is this type of qualitative technique.
What is a focus group?
A sampling technique where random clusters are selected and every individual within each cluster is sampled.
A hypothesis that there is a statistically significant relationship between the treatment and the outcome
What is the research (or alternative) hypothesis?
This test compares the means of two independent groups to determine if the population means are significantly different from each other.
What is an independent t-test?
This type of variable has a true 0 point.
What is a ratio variable?
A descriptive label assigned to sections of interview transcripts
What is a code?
A sampling technique where strata are selected and then simple random samples are selected from each strata
What is stratified sampling?
The probability of observing a value by chance if the null hypothesis is true
What is a p value?
A statistical test that can tell you if there is a relationship between two ratio variables
What is Pearson's correlation coefficient? (linear regression also works here)
Socioeconomic status measured in three categories (low SES, medium SES, and high SES) is an example of what type of variable?
What is an ordinal variable?
A method of qualitative data collection that consists of taking field notes of surroundings
Most often used in qualitative research, this sampling method identifies people who will know the most information about a topic.
What is purposive sampling?
A type of error when you fail to reject the null when the null is false
What is type 2 error?
With this test, you can test differences in means between three unrelated groups
What is a one-way ANOVA?
A pulse rate (beats per minute) is an example of this type of variable.
What is a ratio variable?
A qualitative method that involves participants taking photos to reflect on community concerns
What is photovoice?
This theorem states that the sample mean approaches the population mean if the sample size is large enough, even if population distribution is not normal.
What is the central limit theorem?
This variable is associated with an independent variable and an outcome in a regression analysis
What is a confounding variable?
A type of statistical analysis with a ratio or interval dependent variable and multiple independent variables.
What is multiple linear regression?