Write objectively as a researcher ¤ Pretend you weren’t also the participants; write about the participants as a separate group

Table #

A description of the table in italics

Measure Predictor 1 Predictor 2 Predictor 3 Predictor 4 Predictor 5 Criterion 1

Predictor 1 —

Predictor 2 r value —

Predictor 3 r value r value —

Predictor 4 r value r value r value —

Predictor 5 r value r value r value r value —

Criterion 1 r value* r value r value r value r value —

M mean mean mean mean mean mean

SD std. dev. std. dev. std. dev. std. dev. std. dev. std. dev.

Note: An * denotes p<0.05

GPA:  ________  out  of  4.0

The  Big  Five:  Here  are  a  number  of  characteristics  that  may  or  may  not  apply  to  you.    For  example,  do   you  agree  that  you  are  someone  who  likes  to  spend  time  with  others?    Please  write  a  number  next  to   each  statement  to  indicate  the  extent  to  which  you  agree  or  disagree  with  that  statement.    Answer   quickly.  Please  do  not  skip  any  items.

1   2   3   4   5   Disagree   Disagree   Neither  agree   Agree   Agree   strongly   a  little   nor  disagree   a  little   strongly

 

I  see  myself  as  someone  who…

___1___    (01)   Is  talkative         _______    (23)   Tends  to  be  lazy

_______    (02)   Tends  to  find  fault  with  others     _______    (24)   Is  emotionally  stable,  not  easily  upset

_______    (03)   Does  a  thorough  job     _______    (25)   Is  inventive

_______    (04)   Is  depressed,  blue     ___1___    (26)   Has  an  assertive  personality

_______    (05)   Is  original,  comes  up  with  new  ideas     _______    (27)   Can  be  cold  and  aloof

___5___    (06)   Is  reserved     _______    (28)   Perseveres  until  the  task  is  finished

_______    (07)   Is  helpful  and  unselfish  with  others     _______    (29)   Can  be  moody

_______    (08)   Can  be  somewhat  careless     _______    (30)   Values  artistic,  aesthetic  experiences

_______    (09)   Is  relaxed,  handles  stress  well     ___4___    (31)   Is  sometimes  shy,  inhibited

_______    (10)   Is  curious  about  many  different  things     _______    (32)   Is  considerate  and  kind  to  almost  everyone

___2___    (11)   Is  full  of  energy     _______    (33)   Does  things  efficiently

_______    (12)   Starts  quarrels  with  others     _______    (34)   Remains  calm  in  tense  situations

_______    (13)   Is  a  reliable  worker     _______    (35)   Prefers  work  that  is  routine

_______    (14)   Can  be  tense     ___2___    (36)   Is  outgoing,  sociable

_______    (15)   Is  ingenious,  a  deep  thinker     _______    (37)   Is  sometimes  rude  to  others

___2___    (16)   Generates  a  lot  of  enthusiasm     _______    (38)   Makes  plans  and  follows  through  with  them

_______    (17)   Has  a  forgiving  nature     _______    (39)   Gets  nervous  easily

_______    (18)   Tends  to  be  disorganized     _______    (40)   Likes  to  reflect,  play  with  ideas

_______    (19)   Worries  a  lot     _______    (41)   Has  few  artistic  interests

_______    (20)   Has  an  active  imagination     _______    (42)   Likes  to  cooperate  with  others

____5__    (21)   Tends  to  be  quiet     _______    (43)   Is  easily  distracted

_______    (22)   Is  generally  trusting         _______    (44)   Is  sophisticated  in  art,  music,  or  literature

6-5 = 1

6-5 = 1

6-4 = 2

GPA:  ________  out  of  4.0

The  Big  Five  Inventory:     John,  O.  P.,  &  Srivastava,  S.    (1999).  The  Big  Five  Trait  Taxonomy:    History,  measurement,  and  theoretical

perspectives.    In  L.  A.  Pervin  &  O.  P.  John  (Eds.),  Handbook  of  Personality:    Theory  and  Research  (2nd   ed.,  pp.  102-­‐138),  New  York:    Guilford  Press.

 

SCORING  INSTRUCTIONS     To  score  the  BFI,  you’ll  first  need  to  reverse-­‐score  all  negatively-­‐keyed  items:     Extraversion:  6,  21,  31   Agreeableness:  2,  12,  27,  37   Conscientiousness:  8,  18,  23,  43   Neuroticism:  9,  24,  34   Openness:  35,  41     To  recode  these  items,  you  should  subtract  your  score  for  all  reverse-­‐scored  items  from  6.  For  example,   if  you  gave  yourself  a  5,  compute  6  minus  5  and  your  recoded  score  is  1.  That  is,  a  score  of  1  becomes  5,   2  becomes  4,  3  remains  3,  4  becomes  2,  and  5  becomes  1.     Next,  you  will  create  scale  scores  by  averaging  the  following  items  for  each  B5  domain  (where  R   indicates  using  the  reverse-­‐scored  item).     Extraversion:  1,  6R  11,  16,  21R,  26,  31R,  36   Agreeableness:  2R,  7,  12R,  17,  22,  27R,  32,  37R   Conscientiousness:  3,  8R,  13,  18R,  23R,  28,  33,  38,  43R   Neuroticism:  4,  9R,  14,  19,  24R,  29,  34R,  39   Openness:  5,  10,  15,  20,  25,  30,  35R,  40,  41R,  44

1 + 1 + 2 + 2 + 1 + 1 + 2 + 2 = 12 /8 = 1.5

CORRELATIONAL RESEARCH

Lab 4

Correlational Study

¨ Planet Money podcast episode about the limitations of correlations ¤ Check out the link in Isidore Announcements

Lab 4

¨ On Monday you filled out a questionnaire ¤ Asked about ways you tend to think and act (read: your

personality) ¤ Asked about your academic performance (read: Grade

Point Average) ¤ Are these things related? If so, how? What can that tell

us?

Lab 4

¨ People’s grades vary. What accounts for this variability? ¤ Intelligence? ¤ Work ethic? ¤ Maybe personality?

n If we know something about a person’s personality, can we predict (with some degree of confidence) their grades?

Earlier Study

¨ Lounsbury et al., (2003): correlation between certain characteristics and grades ¤ General intelligence predictive of variance in grades ¤ Work drive predictive of variance in grades ¤ Some aspects of personality

n Of “Big 5” personality traits n Extraversion, agreeableness, conscientiousness, neuroticism,

openness) only some predictive of variance in grades

Our Study

¨ Is personality correlated with GPA ? ¤ Big-5 Inventory (John & Srivastava, 1999)

n Standardized measure of 5 personality traits/dimensions n Extraversion: 9 items n Agreeableness: 8 n Conscientiousness: 9 items n Neuroticism: 8 items n Openness: 10 items

n Total of 44 items

Our Study

¨ Is personality correlated with GPA ? ¤ Big-5 Inventory (John & Srivastava, 1999)

n About half of items were negatively worded and had to be reverse-coded

n Ex: extraversion n (1:disagree strongly to 5: agree strongly)

n I see myself as someone who is… talkative à 4 n I see myself as someone who is… sometimes shy, inhibited à 2

BUT reverse-code by subtracting score from 6 = 4

Our Study

¨ Is personality correlated with GPA ? ¤ Big-5 Inventory (John & Srivastava, 1999)

n Compute mean score for each of the five personality traits n Ex: extraversion

n Sum of positively worded ratings and reverse-coded negatively worded ratings, divided by total items (9)

n Extraversion “score” represents how outgoing (or introverted) a person: lower number = more introverted; higher number = more extroverted

Our Study

¨ Is personality correlated with GPA ? ¤ Big-5 Inventory (John & Srivastava, 1999)

n Other measures we could have used: IASR-B5, NEO-PI, PSI

¤ Self-reported GPA

Earlier Study Vs. Our Study

¨ Personality/work drive/Intelligence

¨ Grade in one course

¨ Personal Style Inventory

¨ Successive Ind. Samples Design

¨ Personality

¨ GPA

¨ Big-Five Inventory

¨ Successive Ind. Samples Design

Lounsbury et al., (2003) Our Study

Lab 4

¨ Prediction: some personality traits correlated with GPA (personality can predict GPA, to some extent) ¤ Correlation between personality trait & GPA

n H1: ρ≠ 0 n H0: ρ= 0

Lab 4

¨ Prediction: conscientiousness and GPA are correlated ¤ + correlation between conscientiousness, GPA

n H1: ρ > 0 n H0: ρ ≤ 0

¨ Prediction: openness and GPA are correlated ¤ + correlation between openness, GPA

n H1: ρ > 0 n H0: ρ ≤ 0

¨ May be correlations between personality traits, but we’re not interested in those

Lab 4

¨ Correlation coefficients = r ¤ Regression analyses looks at how several different

variables (personality traits) contribute to the variability in an outcome variable (grades)

¤ Are correlations statistically significant?

¨ Coefficient of determination = R2

¤ Proportion of 1 variable (GPA) that is predictable from another variable (personality trait)

¨ Correlation table ¨ Scatterplot of conscientiousness and GPA

Lab 4

¨ Title Page ¨ Abstract ¨ Introduction ¨ Method ¨ Results ¨ Discussion ¨ Table ¨ Figure (scatterplot)

Lab 4

¨ Method ¤ All 3 subsections:

n Participants n Even though you were participant, write as the

researcher; number of participants and basic demography

n Materials n Describe questionnaire (cite John & Srivistava, 1999) n Describe types of items, response scale, sample items n Describe positively and negatively worded items

n Procedure: n Describe how survey was administered to participants

Lab 4

¨ Results ¤ Follow the recipe from Lab 3 ¤ Describe how we computed mean score for each

personality trait ¤ Refer to tables and figures rather than cite all means ¤ BUT, must describe and report significant correlation

n r = ____, p = _____

¤ Include on own pages n Table (correlations) n Figure (scatterplot depicting conscientiousness and GPA)

Lab 4

¨ Write objectively as a researcher ¤ Write objectively as a researcher ¤ Pretend you weren’t also the participants; write about

the participants as a separate group

¨ APA style throughout ¤ Refer to the sample paper ¤ Refer to the feedback from Lab 3 (coming to you soon)

 

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