shakirRahman10

qualitative quantitative types t test hypothesis research critical region testing standard deviation data data collection significance cohort case control cross sectional sources importance anova correlation regression variables chi square hypothesis testing assumptions dependent two samples sample size p value critical value level of significance z score variance negative positive frequency polygon histogram charts graphs frequency interval variable descriptive introduction implications interepretation summary discssion recommendations limitations pie bar tables data presentation nvivo spss z test content thematic analysis secondary primary cronbach alpha cvi reliability validity focus groups interviews questionnaire survey tools openepi interventional studies type ii error type i error precision calculation snowball purposive quota convenience multistage clustered stratified systematic random simple random non probability probability technique sampling potential for harm confidentiality anonymity ethical approval justice beneficence informed consent respect belmont report helsinki declaration thalidomide nuremberg code history ethics in research examples features developing conceptual framework theoretical framework synthesis writing style integration thematic organization bibliography search strategy steps database purposes definition literature review statistical tests classification formulating independent research question scope of study objective of study purpose problem statement proposal research problem methodologies hrqol comparative pharmacoeconomics donabedian's theory outcome action research historical grounded theory ethnography phenomenology randomized control trials quasi experimental interventional observational analytical ebp knowledge phd msn adn bsn role nursing within group between groups variation more than two samples independent samples f test y variables x variables scatter plot weak strong line best fit fisher exact test catagorical contingency table pre-post paired equal independant t table power type ii type i error conclusion test statistics two tail one tail non directional directional alternate null values chances of error level of confidence uses confidence interval estimation point standard error central limit theorem sampling mean sampling distribution z table skewness properties normal distribution coefficient variation skewed mode median mean central tendency measures pie chart bar graph boundaries class relative cummulative presentation scales continuous discrete ratio ordinal nominal inferential statistics biostatistics