Topics: Statistics, Research Methodology, Research Problem, Research Hypothesis, Hypothesis Testing procedure, research design, Experimental Design, primary data collection, secondary data collection, Constructing Questionnaire, measurement, Data Collection Techniques, Statistical Theory, Sampling Distribution, Central Limit, Sampling Theory, Parametric Tests, z-test

Topics: Statistics, Research Methods, research problem selection, research problem formulation, developing hypothesis, variables identification, research design, questionnaire design, data collection methods, Statistical Theory, data presentation, report writing, Hypothesis Testing, errors

Topics: Applied Linguistics, Language Learning Theories, First Language Acquisition, Second Language Acquisition, Psycholinguistics, Applied Linguistics, Language Learning performance, error analysis, Contrastive Analysis, Discourse Analysis, Corpora Linguistics, Forensic Linguistics, Language Teaching, Computer Assisted Language Teaching, Language Testing, language Evaluation, language Validation, language planning, Interpreting, Translating, creative performance

Topics: Research Methods, ecology of research, Approaches to Research, research topics source, Nature of Research Problems, Research Background, academic research components, research objectives, Hypotheses, Research Questions, research design, Qualitative Research Designs, qualitative research methods, Quantitative Research Design Library/Desk Research, Survey, Experimental Designs, Statistical Data Collection, Statistical Tools, Documentation, Referencing, Modern Language Association, American Psychological Association, Observation, Hypotheses Testing, Theory Construction, New Hypothesis, Ex-Post Facto Research, Action Research, Historical Research, case studies