The Scientific Method in Psychology

The Foundation of Science: Professor Martin emphasizes that while there are many fields of study available, not all are classified as sciences.
The Scientific Method: The specific factor that distinguishes psychology from other fields of inquiry or study is its use of the scientific method.
Cross-Disciplinary Application: The scientific method is a universal tool used across various scientific domains, including: * Medicine. * Biology. * Psychology.
Core Definition: The scientific method is a systematic way to take a question or subject of study, question whether it is true, learn more about it, and draw evidence-based conclusions.

Specificity over Broadness: A research topic must be precisely defined. For instance, studying "all human behavior" is far too broad for a single psychology study.
Defining the Subject: Researchers must be exact about what they are investigating.
Example - Exercise Behavior: If a researcher wants to study exercise behavior, they must define what that entails. * Specific Context: Studying outdoor activities performed in public settings, such as a park. * Specific Question: What kinds of daily exercise do people engage in within a park environment?

Definition of Testable: A hypothesis must be something that can be practically studied to determine its truth.
Domain Comparison: * Philosophy and Religion: These fields deal with spiritual or existential matters that are important to humans but are often not testable or provable by scientific standards. * Science: Requires a question that can eventually be answered with a "yes" or "no."
Example - The Jogging Hypothesis: In the park study example, the testable hypothesis is: "The most common outdoor exercise people do is jogging." * This is testable because the researcher can observe activities and determine if jogging is the most popular or if another activity takes precedence.

Researcher Discretion: The experimenter/researcher must determine which strategy best fits the question being asked.
Naturalistic Observation: For the park study, the most appropriate strategy is an observational study.
Implementation Details: * Location Selection: The professor suggests a specific location, such as Highland Park. * Subtlety: The researcher must be subtle and avoid changing the behavior of the subjects. The goal is for people to act naturally without knowing they are being watched. * Data Recording: The researcher would sit and count specific behaviors for all people engaged in outdoor activities. * Categories of Observation: The log would include behaviors such as: * Jogging. * Biking. * Yoga. * Playing Frisbee.

Field Work: This is the phase where the actual observation occurs.
Execution: The researcher goes to the chosen location (e.g., Highland Park), selects a specific timeframe for the observation, and physically counts and records every instance of the targeted activities.

Statistical Analysis: Researchers use statistics to interpret the numerical data collected during the study.
Class Recommendation: The professor notes that students interested in scientific fields will likely need to take dedicated statistics courses to master these techniques.
Concluding the Hypothesis: The goal of the analysis is to determine the status of the hypothesis formed in Step 2. * Supporting the Hypothesis: If the evidence (the numbers) shows that jogging was indeed the most common activity, the hypothesis is supported. * Rejecting the Hypothesis: If the evidence shows a different activity (like biking or yoga) was more popular, the researcher must reject the hypothesis.

Recap of the Process: The scientific method follows a strict progression: defining the issue clearly, making a testable hypothesis, choosing the right strategy, conducting the study, and analyzing data to support or reject the initial claim.
Further Study: Students are encouraged to consult the textbook and lecture slides for deeper information on these steps and the various research strategies available in psychology.