PS300 Research Methods I sample papers, unit by unit

Reviewed by Romilly Dunmore, MEd Research Methods I Purdue University Global Free custom samples in 24–48h

PS300 covers the research methods used in psychology and the strengths and weaknesses of each: when to choose one method over another, how to judge a study's conclusions, how to find and use research articles, how to run a naturalistic observation and a survey, and the ethics of research with people. Samples follow one composite student project on pedestrians using phones at a downtown crosswalk in Spokane.

How this shelf works

Send the exact assignment or rubric from your classroom and a custom sample written to it lands in 24 to 48 hours, the first one free. PS300 is Purdue Global’s Research Methods I course. It centers on research methods in psychology, covering experimental, correlational, observational and survey designs and when each fits, evaluating the accuracy of a study's conclusions, finding and using academic research articles, conducting a naturalistic observation, administering and analyzing a survey, and the ethics of research with human participants. Searches like "ps 300 unit 4 assignment example", "PS300 sample paper", and "PS300 unit samples" land on this page.

What PS300 is really about

PS300 is the first research methods course in Purdue Global's BS in Psychology. Its catalog entry covers the research methods used in psychology and the strengths and weaknesses of each approach, when one method is more appropriate than another, how to evaluate the accuracy of a study's conclusions, direct experience finding and using information in academic articles, conducting a naturalistic observation and administering and analyzing surveys, and the ethical considerations of research in psychology.

The course rewards matching method to question. A paper that defines five designs earns less than one that explains why an observation can show how often pedestrians look at phones in a crosswalk but cannot show that phones cause near misses. Numbers should be reported with what they mean, and every conclusion should be checked against the design that produced it. Because the samples follow one project, each unit adds a piece: a question, a review of studies, an observation with a coding scheme, a survey with its analysis, and the ethical judgments behind both.

What PS300’s assessments ask for

PS300 commonly opens with a post proposing a research question from daily life, then asks for a comparison of methods and an analysis of a published article. Middle units usually cover evaluating a study's conclusions, planning a naturalistic observation with operational definitions and a seminar on research ethics. Later units tend to ask for an observation report with reliability, a survey design, an analysis of survey results and a closing proposal or report.

Where students lose points in PS300

The commonest loss is claiming cause from a correlational or observational design. Second is vague operational definitions that two observers could not apply the same way. Third is a survey with leading or double-barreled items. Reports also lose points when they give numbers without saying what they mean or what the design cannot show.

The PS300 drawers

Unit 1

PS300 Unit 1 discussion board post example

Unit 1 often asks students to propose a research question from everyday life and suggest how it could be studied. Full sample paper, annotated.

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Unit 2

PS300 Unit 2 research methods comparison example

Unit 2 typically compares experimental, correlational, observational and survey designs for one research question. Full sample paper, annotated.

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Unit 3

PS300 Unit 3 research article analysis example

Unit 3 commonly asks students to find a peer-reviewed study and analyze its question, method, sample, results and limits. Full sample paper, annotated.

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Unit 4

PS300 Unit 4 evaluating conclusions paper example

Unit 4 often asks students to judge whether a study's or news story's conclusion follows from the evidence. Full sample paper, annotated.

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Unit 5

PS300 Unit 5 observation plan and coding scheme example

Unit 5 typically asks students to plan a naturalistic observation with operational definitions and a coding sheet. Full sample paper, annotated.

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Unit 6

PS300 Unit 6 seminar reflection example

In Unit 6, PS300's seminar weighs research ethics, such as observing strangers in public or using deception, and a reflection follows. Full sample paper, annotated.

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Unit 7

PS300 Unit 7 naturalistic observation report example

Unit 7 often asks for a report of a completed observation with results and interrater reliability. Full sample paper, annotated.

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Unit 8

PS300 Unit 8 survey design example

Unit 8 usually turns to building a short questionnaire with clear items, response scales and a sampling plan. Full sample paper, annotated.

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Unit 9

PS300 Unit 9 survey results analysis example

Unit 9 commonly asks students to analyze and interpret survey results with basic statistics. Full sample paper, annotated.

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Unit 10

PS300 Unit 10 research report example

Unit 10 often closes PS300 with a report that brings question, literature, methods, results and ethics together. Full sample paper, annotated.

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Using a PS300 sample the right way

Read a sample for the moment where a claim meets its design. In the methods comparison, find what each design can and cannot conclude; in the observation report, find the reliability check; in the survey analysis, find the sentence that stops short of cause. Those are where PS300 points are earned.

How these samples are written

The discipline behind every paper here: the rubric is the outline, each row gets its section, seminar-option write-ups follow their expected shape, and the format layer ships exact. Send your unit's instructions with a request and the sample matches them, revisions included.

PS300 questions, answered

Is PS300 a statistics course?

Not mainly; it covers research design, though students compute and interpret basic statistics for their observation and survey.

Do PS300 samples use real data?

No. The crosswalk observation and survey are composite; the published studies cited are real.

Does a class observation need ethics approval?

Course projects usually follow the instructor's guidance; observing public behavior without identifying anyone is generally low risk, but rules vary.