Psyc 375 Exam Questions With 100% Correct Answers

Psyc 375 Exam Questions With 100% Correct Answers How are different types of distributions used for different kinds of data sets? - 1. Normal Distributions: Bell-shaped, symmetrical distribution, Centered around mean, median, mode 2. Skewed Distributions: Skew refers to how lop-sided the distribution of scores appears Positive - few extremely highscores Negative - few extremely lowscores 3. Modality in Distributions: Bimodal distributions can be seen when the mode is twovalues, May be symmetric orasymmetric, A uniform distribution occurs when all values are represented roughly equally 4. Kurtosis in Distributions: Kurtosis refers to how flat thedistribution appears, Mesokurtic - medium height moderate dispersion. Leptokurtic - tall & localized, Platykurtic - short and dispersed How do psychologists define important terms used throughout the research process? - An operational definition allows the researchers to describe in a specific way what they mean when they use a certain term. How do you choose the right method? - 1. Do you want to describe, predict, or explain? 2. How much time and money do you have? 3. What equipment are you using and how are participants being recruitment? 4. Are you getting informed consent and are you placing people in experimental groups? How is ethical treatment of participants maintained? - Ethics approval, Voluntary participation, Confidentiality, Informed Consent, Debriefing How is science defined? - The knowledge obtained by observing natural events and conditions in order to discover facts and formulate principles that can be verified How should questions be worded? - Simple (no jargon or complex language), Unambiguous (use words with one meaning), Precise, Easy to answer How should the items be ordered? - The one you conceptualize as thepredictor first, Randomization and Counterbalancing within a survey addresses undesired order effects, Sometimes group subsets together, Sensitive questions at the end, Demographic questions at the end Under what circumstances should a new survey be created, and what are the benefits? - Validity and reliability of pre-existing materials is questionable or when there are no pre-existing materials