Exam - Part 2 Flashcards
(40 cards)
Sampling Theory
Selecting samples that reflect larger or total population’s
Participant pool
A identified accessible group representative of the target population
Good enough principal
Non-random samples with characteristics that can be generalized to a certain population
Variables that affect the direction and/or strength of the relationship between a predictor (IV) and a criterion (DV)
Strength b/w IV & DV
Moderator
Mediators
Explain the relationship between predictor (IV) and criterion (DV)
The relationship between FCS in frequency of annual well visit is_________ by education.
Mediated
Age may be a ________ variable to the level of success to become pregnant
Moderator
Do heterogeneous or homogeneous population’s limit the degree to which results or generalizable
Homogeneous
Provides a wide righty of characteristics ________ population
Heterogeneous
Error variance is greater for what population
Heterogeneous
Biases will exist in virtually all samples T/F
True
Populations that are repeatedly marginalized within a persons research
Systematic biases in counseling
Statistic power
Probability of rejecting the no hypothesis when it’s true
Determines how many participants are needed
Statistical tests used to determine the power
Types of research
Experimental
Quasi-experimental
Correlational
Quantitative
Qualitative
Mixed methods
Concurrent validity
Calculating correlations with a similar scale
Desire is high correlations
Calculating correlations with a dissimilar scale
Discriminate validity
Hoping for low correlations
The first step of scale construction
Form a research team with diverse backgrounds, values, perspectives
10 tips for developing a scale
Define constructs
Use literature to develop items (i.e. questions)
Be precise
Avoid difficult wording
avoid irrelevant information
use positive language
avoid double negatives
Avoid “absolutes”
Avoid vague terms like “sometimes”
Items should focus on ____ thought or concept
One
Items should be reviewed with small groups to identify _______
Relevance or gaps
Examine reliability via c________ a_______
Coefficient alphas
Coefficient alpha of .70 or higher
Is desired in social sciences
Informs researchers of the stability of a scale over time
Test-retest reliability