Quasi-/small N
What is the defining feature of a quasi-experimental design?
Lack of random assignment (no manipulation)
What are latent variables?
They are indirectly measured variable, they are the overarching construct measured in surveys
Explained semi-guided interviews
When there are starting questions the interviewer asks each participant but the interviewer also is trained to ask follow-up questions
what is an outlier
an extreme data point
What is the Z-critical value for a one-tailed test at the .05 level?
plus or minus 1.65
What is a longitudinal design?
The same participants are followed over time, with at least three measures of the DV during the course of the study.
In the context of survey creation, what are floaters?
responders who choose a substantive answer when they don’t really know
What is the difference between a field study and a field experiment?
Field experiment involves a manipulation of an IV
what is mean substitution?
In a mean substitution, the mean value of a variable is used in place of the missing data value for that same variable
In order for you to be able to do a z-test you need the population ____ and_____
mean and variance
What are the three types of "before and after" quasiexperimental designs?
Fixed-sample panel design
Interrupted time series
multiple group before-and-after
Rate the extent you which to agree with the following: "I like ice cream and cookies"
What error does the above question contain?
Double-barrelled question
What are two techniques used to not be noticed during participant observation
Desensitization -> gradually moving closer
Habituation -> continually comes around
When examining the normality of the data what would you look at?
skewness and kurtosis
Who created the T distribution?
William Gosset
Explain withdrawal studies.
The basic idea of a withdrawal design is that researchers take away the manipulation to see if there are lasting effects on the DV
multiple correct answers
Explain why qualitative analysis is largely an inductive process.
Unlike in quantitative analysis, in qualitative analysis researchers allow themes to develop and change while coding and reviewing the data
What measure of central tendency is most affected by extreme values?
mean
In words, what is the t-statistic?
It is a ratio of difference in group means to total variance of the entire sample
Explain Cohort-Sequential Designs
Two or more concurrent longitudinal data collections in time
What is exploratory factor analysis?
Looks at correlations between the answers and then recommends a certain amount of factors (constructs) that the survey measures
What are traces?
traces are remnants, fragments, and products of past
behavior
What does a variance of 36 mean?
how disperse the data is, a variance of 36 is an SD of 6 which indicates for a normal distribution of data 68% of the data is 6 units above and below the mean
what is the variance for the below numbers?
5 9 2 2 3 8 9 9 3 2
You have 5 min
10.178