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PSY 138  Reasoning In Psychology Using Statistics  Illinois State Study Resources

Significance_Testing
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Significance Testing Wed, March 24th Statistical Hypothesis Testing Procedure that allows us to make decisions about pop parameters based on sample stats Example mean aver salary of all workers = $28,985 (pop mean = y) Sample of 100 Af

Lab17
School: Illinois State
Name _ Lab 18 Worksheet 1) Your company markets a computerized medical diagnostic program. The program scans the results of routine medical tests (pulse rate, blood tests, etc.) and either clears the patient or refers the case to a doctor. The program is

Dmlab25
School: Illinois State
Name _ Lab 25 Worksheet 1) 2) 3) 4) 5) 6) 7) 8) a) b) c) 9) a) b) c) 10) (a) (b) (c)

Lab22
School: Illinois State
Name _ Lab 22 Worksheet 1) If you just make one 90% confidence interval will it necessarily capture the parameter value (actual population mean)? Try it. How good was your guess? 2) If you make ten different 90% confidence intervals, how many of them do y

Dmlab19
School: Illinois State
Name _ Lab 19 Worksheet 1) Paste the plots with your handdrawn line below. height by average of your parent's height (avgphgt) height by average household income of your parents(income) height by average weekly calcium intake over the first 5 years of li

Dmlab15
School: Illinois State
Name _ Lab 15 Worksheet 1) Your company markets a computerized medical diagnostic program. The program scans the results of routine medical tests (pulse rate, blood tests, etc.) and either clears the patient or refers the case to a doctor. The program is

Dmlab13
School: Illinois State
Name _ Lab 13 Worksheet 1) 2) 3) 4) 5) 6) (7) (8) Try another example with a different distribution: A bottling company uses a filling machine to fill plastic bottles with cola. The bottles are supposed to contain 300 milliliters (ml). In fact the content

Lab6
School: Illinois State
Name _ Lab 6 Worksheet (1) (a) (b) (c) (2) (a) (b) (3) (a) (b) (c) (4) (a) (b) (c)

Significance_Testing
School: Illinois State
Significance Testing Wed, March 24th Statistical Hypothesis Testing Procedure that allows us to make decisions about pop parameters based on sample stats Example mean aver salary of all workers = $28,985 (pop mean = y) Sample of 100 African Amer wor

NormalDist_ch10slides
School: Illinois State
Ch10:NormalDistribution& StandardScores Mon.Feb23rd,2004 Commontheoreticaldistributionw/bellshaped, symmetricalcurve Mean,median,modealloccuratpeak NormalDistribution(ND) PropertiesoftheND: Areaunderit=1.0(100cores) 50coresfallabovemidpt,50'elow Betw

Rulers
School: Illinois State
Ruler # 1 _ 0 Ruler # 2 0 _ 1 _ _ 1 2 _ 3 _ _ 2 4 _ 5 _ _ 3 6 _ 7 _ _ 4 8 _ 9 _ _ 5 10 _ 11 _ _ 6 12 _

Related Samples Ttest
School: Illinois State
Related Samples ttest Wed, Apr 7th Related Samples t Use when: 1 group of subjects is tested more than once (e.g., pretest / posttest).or 2 groups of related (or matched) subjects are measured once (e.g., twins) Uses same basic t formula, but focu

Dmlab16
School: Illinois State
Name_ Lab 16: Review Lab Worksheet (1) (2) (3) (4) (5) (6) (7) (a) (b) (c) (d) (a) (b) (8)

Lab16
School: Illinois State
Name _ Lab 17 Worksheet Try some on your own. Each of the following situations calls for a significance test for a population mean . State the null hypothesis H0 and the alternative hypothesis Ha in each case. (1) The diameter of a spindel in a small moto

Dmlab22
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Name _ Lab 22 Worksheet (1) A major university would like to improve its tarnished image following a large oncampus scandal. Its marketing department develops a short television commercial and tests it on a sample of n = 7 subjects. People's attitude

Rulers
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Ruler # 1 _ 0 Ruler # 2 0 _ 1 _ _ 1 2 _ 3 _ _ 2 4 _ 5 _ _ 3 6 _ 7 _ _ 4 8 _ 9 _ _ 5 10 _ 11 _ _ 6 12 _

IndependentSamplesttest
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Independent Samples ttest Mon, Apr 12th t Test for Independent Means Comparing two samples e.g., experimental and control group Scores are independent of each other Focus on differences betw 2 samples, so comparison distribution is: Di

Lab20
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Name _ Lab 20 Worksheet (1) A major university would like to improve its tarnished image following a large oncampus scandal. Its marketing department develops a short television commercial and tests it on a sample of n = 7 subjects. People's attitude

Lab17
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Name _ Lab 18 Worksheet 1) Your company markets a computerized medical diagnostic program. The program scans the results of routine medical tests (pulse rate, blood tests, etc.) and either clears the patient or refers the case to a doctor. The progra

Lab21
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Name _ Lab 22 Worksheet (1) A psychologist is interested in studying the effects of fatigue on mental alertness. She decides to study this question using an independent samples design. She randomly assigns individuals to two groups. Group 1 stays awa

Lab16
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Name _ Lab 17 Worksheet Try some on your own. Each of the following situations calls for a significance test for a population mean . State the null hypothesis H0 and the alternative hypothesis Ha in each case. (1) The diameter of a spindel in a small

NormalDist_ch10slides
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Ch10:NormalDistribution& StandardScores Mon.Feb23rd,2004 Commontheoreticaldistributionw/bellshaped, symmetricalcurve Mean,median,modealloccuratpeak NormalDistribution(ND) PropertiesoftheND: Areaunderit=1.0(100%scores) 50%scoresfalla

Dmlab24
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Name _ Lab 24 Worksheet (1) (2) (3) (4) (5)

Lab9
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Name _ Lab 9 Worksheet (1) For the data set (for the median computation, consider this data for a discrete variable): (21, 22, 23, 24, 24, 24, 25, 25, 25, 25, 26, 27, 28) compute (by hand) the mean, mode, and median. Questions 28 use the students.sa

Lab14
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Name _ Lab 14 Worksheet 1) If you toss the coin just once, what are the possible values for the proportion of heads? 2) If you toss the coin 400 times with a probability of 0.5, which is more likely to happen: getting exactly 200 heads, or getting w

Dmlab19
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Name _ Lab 19 Worksheet 1) Paste the plots with your handdrawn line below. height by average of your parent's height (avgphgt) height by average household income of your parents(income) height by average weekly calcium intake over the first 5 years

Lab1
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Name _ Lab 1 Worksheet Email address: Math "quiz." This is designed to show you that you know how to do the level of math required in this course. 1. a) (2 + 4 )(6 + 5) 2 6(12) 2 b) c) d) Calculate the average of the following numbers: 3 6 2 1 3

ChiSquare Test
School: Illinois State
Course: Reasoning In Psychology Using Statistics
ChiSquare Test Mon, Apr 19th, 2004 ChiSquare ( 2) Are 2 categorical variables related (correlated) or independent of each other? Compares # in categories that would be expected by chance (E) to # in categories actually observed (O) Null

Related Samples Ttest
School: Illinois State
Course: Reasoning In Psychology Using Statistics
Related Samples ttest Wed, Apr 7th Related Samples t Use when: 1 group of subjects is tested more than once (e.g., pretest / posttest).or 2 groups of related (or matched) subjects are measured once (e.g., twins) Uses same basic t formu

Central Tendency
School: Illinois State
Central Tendency Mon. Feb 16th, 2004 Central Tendency One number that summarizes an entire distribution. 3 measures of central tendency: Mean arithmetic average of scores Median score that divides distribution exactly in half (50% percentile) Mode m