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Descriptive Research
Descriptive research provides a detailed account of a social setting, a group of people, a community, a situation, or some other phenomenon. This kind of research strives to paint a complete and accurate picture of the world by focusing on the factual details that best describe a current or past event. Researchers engaged in descriptive studies set out to identify who participates in an event, where and when it occurs, and what happens, without exploring the causal relationships involved in that event. For example, a descriptive study may examine the types of services offered by a government agency, the living conditions of a homeless population in a large urban center, the experiences of teachers in elementary school classrooms, or the daily needs of individuals living with breast cancer. One common example of a descriptive study is a census, which sets out to document demographic (e.g., age, gender) and other details (e.g., housing costs) about individuals living in a particular community. Census data are often collected over many years, allowing researchers to examine changes in demographic and social patterns within a particular nation, city, neighborhood, or other identified social grouping.
In compiling descriptive facts about various phenomena, descriptive research is allied most closely with quantitative approaches (including the use of descriptive statistics), although descriptive approaches may also be used in qualitative research to provide valuable background information for analyses of individuals' attitudes, opinions, and personal experiences of particular phenomena. Descriptive research is the most commonly used approach in the human (behavioral) sciences because it allows researchers to examine conditions that occur naturally in the home, hospitals, classrooms, offices, libraries, sports fields, and other locales where human activities can be systematically explored, documented, and analyzed.
Descriptive Research Methods
In quantitative research, descriptive studies are concerned with the functional relationships between variables, hypothesis testing, and the development of generalizations across populations. The findings of descriptive studies are valuable in that they provide information that enables researchers and practitioners to define specific variables clearly, to determine their current situations, and to see how these variables may relate to other variables. In qualitative approaches, descriptive research is often referred to as a form of naturalistic inquiry; this type of research allows the researcher to observe, document, and detail specific activities within a defined social setting in order to point to transferable findings. In both quantitative and qualitative approaches, descriptive research is marked by its exploration of existing events and conditions that would have happened even if the researcher was not there to observe and document the details. A number of different research methods are commonly used in quantitative and qualitative descriptive studies; the sections that follow will briefly examine the goals of some of these approaches.
Questionnaires and Structured Interviews
Methods designed to survey individuals about their experiences, habits, likes and dislikes, or even the number of televisions in their homes are commonly used to gather data from a large sample of a given population at a particular point in time. These methods are designed to generalize to the larger population in order to document the current or past activities and experiences that surround a particular phenomenon. For example, a questionnaire may be designed to identify young people's familiarity with different media outlets, to explore parents' knowledge about treatments for the common cold, or to document the demographic characteristics of new immigrants in rural communities. Large-scale questionnaires and structured interviews typically use some form of probability sampling to select a representative sample of a particular population. These methods take many different forms and can be used across topic areas, including telephone polls (e.g., to solicit voting patterns), mail-in or Web-based questionnaires (e.g., personal shopping habits), and in-person surveys (e.g., in-store product assessments). Researchers must take care to ensure high response rates that will represent the population, as participation rates as low as 15% can be common, especially in e-mail or Web-based surveys.
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- Biographies
- Babbage, Charles
- Bernoulli, Jakob
- Bonferroni, Carlo Emilio
- Bruno, James Edward
- Comrey, Andrew L.
- Cronbach, Lee J.
- Darwin, Charles
- Deming, William Edwards
- Fisher, Ronald Aylmer
- Galton, Sir Francis
- Gauss, Carl Friedrich
- Gresham, Frank M.
- Jackson, Douglas N.
- Malthus, Thomas
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- Fisher's LSD
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- Kruskal-Wallis One-Way Analysis of Variance
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- Newman-Keuls Test
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- Page's L Test
- Paired Samples t Test (Dependent Samples t Test)
- Path Analysis
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- Shapiro-Wilk Test for Normality
- Structural Equation Modeling
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- Three-Card Method
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- Wilcoxon Signed Ranks Test
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- t Test for Two Population Means
- Analysis of Covariance (ANCOVA)
- Analysis of Variance (ANOVA)
- Behrens-Fisher Test
- Binomial Distribution/Binomial and Sign Tests
- Binomial Test
- Bonferroni Test
- Bowker Procedure
- Chi-Square Test for Goodness of Fit
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- Cochran Q Test
- Dixon Test for Outliers
- Dunn's Multiple Comparison Test
- Excel Spreadsheet Functions
- Fisher Exact Probability Test
- Fisher's LSD
- Friedman Test
- Goodness-of-Fit Tests
- Kolmogorov-Smirnov Test for One Sample
- Kolmogorov-Smirnov Test for Two Samples
- Kruskal-Wallis One-Way Analysis of Variance
- Latent Class Analysis
- Likelihood Ratio Test
- Lilliefors Test for Normality
- Mann-Whitney U Test (Wilcoxon Rank-Sum Test)
- McNemar Test for Significance of Changes
- Median Test
- Multiple Comparisons
- Multivariate Analysis of Variance (MANOVA)
- Newman-Keuls Test
- O'Brien Test for Homogeneity of Variance
- One- and Two-Tailed Tests
- One-Way Analysis of Variance
- Page's L Test
- Paired Samples t Test (Dependent Samples t Test)
- Peritz Procedure
- Repeated Measures Analysis of Variance
- Shapiro-Wilk Test for Normality
- Tests of Mediating Effects
- Tukey-Kramer Procedure
- Wilcoxon Signed Ranks Test
- Tests by Name
- Adjective Checklist
- Alcohol Use Inventory
- Armed Forces Qualification Test
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- Basic Personality Inventory
- Bayley Scales of Infant Development
- Beck Depression Inventory
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- Bender Visual Motor Gestalt Test
- Bracken Basic Concept Scale–Revised
- California Psychological Inventory
- Career Assessment Inventory
- Career Development Inventory
- Career Maturity Inventory
- Carroll Depression Scale
- Children's Academic Intrinsic Motivation Inventory
- Clinical Assessment of Attention Deficit
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- Cognitive Abilities Test
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- Comrey Personality Scales
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- Culture Fair Intelligence Test
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- Ecological Momentary Assessment
- Edwards Personal Preference Schedule
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- Fagan Test of Infant Intelligence
- Family Environment Scale
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- Graduate Record Examinations
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- Jackson Personality Inventory–Revised
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- Kaufman Assessment Battery for Children
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- Law School Admissions Test
- Life Values Inventory
- Luria Nebraska Neuropsychological Battery
- Male Role Norms Inventory
- Matrix Analogies Test
- Millon Behavioral Medicine Diagnostic
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- Multidimensional Aptitude Battery
- Multiple Affect Adjective Checklist–Revised
- Myers-Briggs Type Indicator
- NEO Personality Inventory
- Neonatal Behavioral Assessment Scale
- Peabody Picture Vocabulary Test
- Personal Projects Analysis
- Personality Assessment Inventory
- Personality Research Form
- Piers-Harris Children's Self-Concept Scale
- Preschool Language Assessment Instrument
- Profile Analysis
- Projective Hand Test
- Quality of Well-Being Scale
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- Roberts Apperception Test for Children
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- Sixteen Personality Factor Questionnaire
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- Stanford Achievement Test
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- Strong Interest Inventory
- Stroop Color and Word Test
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- System of Multicultural Pluralistic Assessment
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- Torrance Tests of Creative Thinking
- Torrance Thinking Creatively in Action and Movement
- Universal Nonverbal Intelligence Test
- Vineland Adaptive Behavior Scales
- Vineland Social Maturity Scale
- Wechsler Adult Intelligence Scale
- Wechsler Individual Achievement Test
- Wechsler Preschool and Primary Scale of Intelligence
- West Haven-Yale Multidimensional Pain Inventory
- Woodcock Johnson Psychoeducational Battery
- Woodcock Reading Mastery Tests Revised
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