research meth 2 Flashcards
fixed coding (qualitative data)
Assigns units of information to predetermined categories, you already know what you’re looking for
Flexible coding (qualitative data)
allows new categories to emerge during the analysis
Grounded-in-data coding (qualitative data)
start without categories and allow new ones to emerge
CAQDAS
Computer Assisted Qualitative Data Analysis Software
Systematic variation
variation in data due to the manipulation
Unsystematic variation
variotion due to a random factor
Mean
average
Mode
most frequent score
Median
mediana
Variance
average squared deviation from the mean
Standard deviation
square root of variance
Z-score
number of units that are above or below the mean
Cross tabs
contingency table
Chi-square
statistical test used to compare observed data with the expected data, only with NOMINAL variables
Central Limit Theorem
distribution of the sample means approximately shows normal distribution in a bigger population
T-test
used to determine if there is a significant different between the means of two groups
Type I error
decided wrongly that there was a significant result
Type II error
decided wrongly that there was no significant result
Correlation
measure of strength of association among variables
Correlation Coefficient
a number that measures the strength and direction of the relationship
Person’s Correlation Coefficient
(r) measure for correlation between 2 interval/ratio variables
Spearman’s Correlation Coefficient
(rs) measure for correlation between ordinal variables
