Online Appendix Table A.1: Experiment Sample Distribution and National Demographic Benchmarks Latino Decisions Sample, Study 1 (%) YouGov Sample, Study 2 (%) American Community Survey 2014 (%) Gender Female 50 60 49 Male 50 40 51 Median Age 32 39 28 Immigrant Generation First Generation 36 33 37 Second Generation 36 47 30 Third Generation+ 28 20 33 Educational Attainment Less than a high school diploma 8 8 20 High school diploma or equivalent 24 36 15 Some College 40 32 12 Bachelor's degree or more 29 23 7 Household Income (ACS categories in parentheses) under $16,999 (ACS: under $14,999) 15 22 17 $17,000-$34,999 (ACS: $15,000-$34,999) 26 29 30 $35,000-$69,000 (ACS: $35,000-$74,999) 34 28 33 $70,000-$119,000 (ACS: $75,000-18 14 9 $99,000) $120,000 or more (ACS: $100,000 or 7 7 12 more) National Group Origins Mexican 44 45 63 Puerto Rican 11 19 9 Cuban 6 8 4 Other 39 25 24 Partisanship (with leaners being probed) Democrats 57 50 52 Independents 12 31 20 Republicans 27 20 23 Notes: With the exception of age being reported as a median, the figures above are based on percentages. The first sample demographics are from Study 1 with 1,015 Latino adult respondents gathered through Latino Decisions, whereas the second sample demographics are from Study 2 and were gathered through YouGov. The final column includes figures from the American Community Survey 2014, though the national partisanship figures are based on a 1
recent USA Today/Gallup (from April 16-May 31, 2016), and they are not excluded to those who are registered to vote. 2
Table A.2: OLS Models, Emotion Manipulation Check of Threat (Fear) and Opportunity (Hope) Model 1 Model 2 Hope Fear Threat Condition -0.068** 0.037 (0.032) (0.034) Opportunity Condition -0.038 0.023 (0.033) (0.035) Coupled Condition -0.049-0.023 (0.032) (0.034) Highest Educ. Degree (7-cat., 0-1) 0.004 0.040 (0.040) (0.043) Household Income level (5-cat., 0-1) -0.007 0.004 (0.045) (0.048) Age -0.062-0.081 (0.058) (0.061) Immigrant Generation (3-cat., 0-1)(1= 1 st generation) -0.027-0.001 Partisanship (7-cat.)(1= Strong Republicans) (0.030) (0.032) 0.002-0.055 (0.040) (0.042) Gender 0.009 0.028 (0.024) (0.026) Cognitive Threat (6 cat.) -0.088** 0.049 (0.039) (0.041) Constant 0.639*** 0.514*** (0.053) (0.057) Observations 1,001 1,001 R-squared 0.013 0.010 3
Table A.3: Study 1, OLS Models Estimating Cognitive Perceptions of Threat (1) and Opportunity (0) by Treatments Model 1 Model 2 Model 3 Cognitive Threat Manipulation Check, 7 cat. (Base = Control) Cognitive Threat Manipulation Check, 6 cat. (Base = Control) Cognitive Threat Manipulation Check, 6 cat. (Base = Threat) Threat Condition 0.092*** 0.119*** - (0.026) (0.032) - Opportunity Condition -0.172*** -0.216*** -0.335*** (0.026) (0.032) (0.032) Coupled Condition -0.003 0.003-0.116*** (0.026) (0.032) (0.032) Control Condition - - -0.119*** - - (0.032) Constant 0.555*** 0.564*** 0.683*** (0.018) (0.023) (0.022) Observations 1,001 756 756 R-squared 0.097 0.131 0.131 4
Figure A.1: Study 1, Predicted Probabilities of the Perception that Policy Proposal Will Make Lives of Unauthorized Immigrants Easier or Harder by Treatments 1.000 Predicted Probabilities of Cognitive Perception Manipulation Check (6 cat.) 0.900 0.800 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.564 + 0.683*** 0.348*** + 0.567 + 0.000 Control Threat Opportunity Coupled Notes: Predicted probabilities are derived from OLS regression estimates from Model 2 of Appendix Table B-1 (n=1,001). Predicted Probabilities based on the 6-category measure of the cognitive perception of threat and opportunity, ranging from 0 to 1, with 1 meaning current proposals will make life a great harder for undocumented immigrants and 0 meaning currents proposals will make life a great deal easier for undocumented immigrants. Relative to the nonpolitical control condition, all probabilities are based on the following p-values using a twotailed test: *** p<0.01, ** p<0.05, * p<0.1. + Signifies the predicted probabilities that are statistically distinguishable from the threat condition at the p<.01 level (Model 3). 5
Table A.4: Study 1, OLS Regressions, Main Effects of Treatments Estimating Non- Electoral Forms of Political Participation with Added Demographic Controls Model 1 Model 2 Model 3 Model 4 Join a March (Baseline = Control) Talk About Politics (Baseline = Control) Volunteer for Organization (Baseline = Control) Participation Scale (Baseline = Control) Threat Condition 0.039 0.029 0.021 0.029 (0.028) (0.029) (0.028) (0.024) Opportunity Condition 0.023 0.032 0.013 0.023 (0.028) (0.029) (0.028) (0.024) Coupled Condition 0.051* 0.069** 0.028 0.049** (0.028) (0.029) (0.028) (0.024) Gender -0.036* 0.007-0.006-0.012 (0.021) (0.022) (0.021) (0.018) Highest Educ. Degree (7-cat., 0-1) 0.024 (0.036) 0.089** (0.036) 0.072** (0.035) 0.062** (0.031) Household Income level (5-cat., 0-1) -0.030 (0.040) -0.016 (0.041) -0.043 (0.039) -0.030 (0.035) Age -0.425*** -0.264*** -0.414*** -0.367*** (0.051) (0.052) (0.050) (0.044) Immigrant Generation (3-cat., 0-1)(1=1 st gen) -0.105*** (0.026) -0.113*** (0.027) -0.161*** (0.026) -0.126*** (0.023) Partisanship (7-cat.) (1=Strong Republicans) 0.164*** (0.035) 0.177*** (0.036) 0.150*** (0.034) 0.164*** (0.030) Constant 0.380*** 0.423*** 0.420*** 0.408*** (0.043) (0.044) (0.042) (0.037) Observations 1,001 1,001 1,001 1,001 R-squared 0.109 0.080 0.122 0.128 6
Table A.5: Study 1, OLS Regressions, Main Effects of Treatments Estimating Intent to Vote with Added Demographic Controls Model 1 Intent to Vote (Baseline = Control) Threat Condition -0.027 (0.024) Opportunity Condition -0.041* (0.024) Coupled Condition -0.015 (0.024) Gender -0.021 (0.018) Highest Educ. Degree 0.113*** (7-cat., 0-1) (0.031) Household Income level 0.029 (5-cat., 0-1) (0.034) Age 0.208*** (0.042) Immigrant Generation 0.047** (3-cat., 0-1)(1= 1 st gen) (0.023) Partisanship (7-cat.) 0.113*** (1=Strong Republicans) (0.028) Constant 0.647*** (0.038) Observations 789 R-squared 0.078 7
Table A.6: Study 1, Logit Models, Main Effects of Treatments Estimating Sent Postcard with Added Demographic Controls Model 1 Model 2 Model 3 Postcard Sent (Baseline = Control) Postcard Sent (Baseline = Threat) Postcard Sent (Baseline = Opportunity) Threat Condition 0.024-0.010 (0.187) - (0.187) Opportunity Condition 0.014-0.010 - (0.186) (0.187) - Coupled Condition 0.483** 0.459** 0.469** (0.194) (0.194) (0.193) Control Condition -0.207-0.207-0.207 (0.143) (0.143) (0.143) Gender 0.334 0.334 0.334 (0.240) (0.240) (0.240) Highest Educ. Degree (7-cat., 0-1) 0.189 (0.269) 0.189 (0.269) 0.189 (0.269) Household Income level (5-cat., 0-1) -0.516 (0.341) -0.516 (0.341) -0.516 (0.341) Age -0.504*** -0.504*** -0.504*** (0.178) (0.178) (0.178) Immigrant Generation (3-cat., 0-1)(1= 1 st generation) 0.072 (0.235) 0.072 (0.235) 0.072 (0.235) Partisanship (7-cat.) (1=Strong Republicans) - - -0.024 (0.187) -0.014 (0.186) Constant 0.660** 0.684** 0.674** (0.289) (0.291) (0.280) Observations 1,001 1,001 1,001 8
Table A.7: Study 2, Complete Results Main Effects of Treatments Estimating Non- Electoral Forms of Political Participation with Full Sample Model 1 Model 2 Model 3 Model 4 Model 5 Model 6 Model 7 March Volunteer Talk Donate Boycott Participation Scale (OLS) Sent Postcard Fear Condition 0.23 0.05-0.01-0.17 0.44 0.09 0.72** (0.27) (0.27) (0.27) (0.26) (0.27) (0.24) (0.34) Hope Condition -0.20-0.40-0.42-0.28-0.36-0.38 0.14 (0.28) (0.27) (0.28) (0.27) (0.29) (0.25) (0.32) Fear and Hope Condition 0.09-0.07-0.12-0.18 0.28-0.03 0.13 (0.27) (0.26) (0.27) (0.26) (0.27) (0.24) (0.31) Pride and Hope Condition 0.05-0.12 0.22-0.13 0.62** 0.06 0.16 (0.28) (0.28) (0.29) (0.27) (0.28) (0.26) (0.32) Hope and Fear Condition -0.15-0.04-0.20-0.29 0.20-0.07-0.10 (0.28) (0.27) (0.28) (0.27) (0.28) (0.25) (0.30) Fear and Pride Condition -0.06-0.04-0.06-0.25-0.16-0.18 0.15 (0.28) (0.27) (0.28) (0.27) (0.28) (0.25) (0.31) Gender -0.15-0.07-0.47*** -0.10-0.30* -0.21-0.63*** (0.16) (0.16) (0.16) (0.15) (0.16) (0.14) (0.19) Immigrant Generation -0.16** -0.34*** -0.21*** -0.10-0.09-0.20*** -0.00 (0.08) (0.08) (0.08) (0.07) (0.08) (0.07) (0.09) Highest Educ. Degree (7- cat., 0-1) 0.90*** 0.74*** 0.81*** 0.59** 0.63** 0.78*** 0.63* (0.29) (0.29) (0.30) (0.28) (0.29) (0.26) (0.35) Household Income level (5-cat., 0-1) -0.19-0.23 0.32 0.02 0.10 0.01 0.73** (0.29) (0.28) (0.29) (0.28) (0.29) (0.26) (0.35) Age -0.02*** -0.02*** -0.02*** -0.01* -0.02*** -0.02*** -0.01 (0.01) (0.01) (0.01) (0.00) (0.01) (0.00) (0.01) Mexican -0.19-0.25-0.41 0.28 0.06-0.03-0.11 (0.43) (0.43) (0.42) (0.40) (0.42) (0.37) (0.47) Puerto Rican -0.46-0.60-0.18-0.13-0.37-0.27 0.06 (0.46) (0.46) (0.44) (0.42) (0.45) (0.39) (0.49) Cuban -0.56-0.66-0.57-0.06-0.08-0.35-0.32 (0.48) (0.46) (0.45) (0.44) (0.46) (0.40) (0.50) Other Latino -0.39-0.37-0.34 0.19-0.26-0.16-0.13 (0.43) (0.42) (0.41) (0.39) (0.42) (0.37) (0.46) Party ID (Baseline =Strong, Mod, Lean Republicans) Independents 1.12*** 0.35 0.47** 0.86*** 0.86*** 0.65*** -0.44* (0.27) (0.24) (0.22) (0.25) (0.26) (0.21) (0.26) Democrats (Strong/Mod/Lean) 1.76*** 1.08*** 1.36*** 1.46*** 1.57*** 1.49*** 0.66*** (0.25) (0.22) (0.21) (0.22) (0.24) (0.18) (0.25) 9
Constant -0.33 1.16* 1.25** -0.87-0.92 2.50*** 1.26* (0.62) (0.60) (0.60) (0.58) (0.62) (0.53) (0.69) Observations 850 846 844 847 839 826 847 R-squared 0.13 10
Table A.8: Study 2, Full Results for Main Effects of Treatments Estimating Non-Electoral Forms of Political Participation Among Democrats Model 1 Model 2 Model 3 Model 4 Model 5 Model 6 Model 7 March Volunteer Talk Donate Boycott Participation Scale (OLS) Sent Postcard Fear Condition 0.47 0.26 0.55 0.48 0.50 0.53 1.45* (0.37) (0.38) (0.42) (0.37) (0.37) (0.35) (0.81) Hope Condition -0.03 0.05-0.11-0.16-0.47-0.19-0.34 (0.37) (0.37) (0.40) (0.36) (0.37) (0.35) (0.53) Fear and Hope Condition 0.44 0.63* 0.88** 0.44 0.50 0.63* -0.39 (0.37) (0.38) (0.44) (0.36) (0.37) (0.35) (0.51) Pride and Hope Condition 0.04 0.12 0.62-0.06 0.57 0.27-0.07 (0.38) (0.39) (0.44) (0.38) (0.39) (0.37) (0.54) Hope and Fear Condition 0.24 0.39 0.41 0.28 0.46 0.43-0.18 (0.37) (0.38) (0.42) (0.37) (0.38) (0.36) (0.53) Fear and Pride Condition -0.26-0.08 0.25-0.18-0.43-0.23-0.18 (0.37) (0.38) (0.40) (0.37) (0.38) (0.36) (0.52) Gender 0.06 0.11-0.32-0.03-0.17-0.01-0.39 (0.22) (0.22) (0.25) (0.21) (0.22) (0.21) (0.33) Immigrant Generation -0.16-0.32*** -0.15 0.00-0.14-0.17* 0.16 (0.10) (0.11) (0.12) (0.10) (0.11) (0.10) (0.15) Highest Educ. Degree (7- cat., 0-1) 1.02*** 1.01** 1.09** 0.93** 0.88** 1.08*** 1.36** (0.38) (0.39) (0.44) (0.38) (0.38) (0.36) (0.58) Household Income level (5-cat., 0-1) 0.28-0.01 0.87* 0.19 0.38 0.36 0.74 (0.39) (0.40) (0.45) (0.38) (0.39) (0.37) (0.59) Age -0.02*** -0.03*** -0.01-0.00-0.02** -0.02*** -0.00 (0.01) (0.01) (0.01) (0.01) (0.01) (0.01) (0.01) Mexican -0.87-0.84-1.09-0.46-0.17-0.66-1.26* (0.67) (0.68) (0.69) (0.64) (0.65) (0.64) (0.73) Puerto Rican -1.29* -1.31* -1.14-1.13-0.83-1.20* -1.47* (0.71) (0.72) (0.73) (0.69) (0.70) (0.68) (0.82) Cuban -1.18* -1.44** -1.59** -0.95-0.60-1.26* -1.94** (0.71) (0.72) (0.74) (0.69) (0.70) (0.68) (0.78) Other Latino -0.96-1.09-1.13* -0.58-0.72-0.90-1.36* (0.66) (0.67) (0.68) (0.63) (0.65) (0.63) (0.71) Constant 1.53* 2.46*** 2.11** 0.31 0.85 3.97*** 2.48** (0.83) (0.85) (0.90) (0.81) (0.82) (0.79) (1.04) Observations 430 428 426 429 425 419 430 R-squared 0.08 11
Table A.9: Study 2, Full Results for Main Effects of Treatments Estimating Non-Electoral Forms of Political Participation Among Republicans Model 1 Model 2 Model 3 Model 4 Model 5 Model 6 Model 7 March Volunteer Talk Donate Boycott Participati on Scale (OLS) Sent Postcard Fear Condition -0.19 0.33-0.62-0.73 0.73-0.18 1.09 (0.89) (0.62) (0.57) (0.67) (0.83) (0.44) (0.69) Hope Condition 0.10-0.75-1.10* -0.13 0.55-0.36 1.99** (0.93) (0.74) (0.63) (0.66) (0.94) (0.48) (0.91) Fear and Hope Condition 0.17-0.69-1.33** -1.55** 0.82-0.56 1.15 (0.80) (0.67) (0.62) (0.77) (0.80) (0.45) (0.71) Pride and Hope Condition -0.32-0.93-0.65-1.56* 0.82-0.53 0.52 (0.99) (0.80) (0.63) (0.89) (0.87) (0.49) (0.70) Hope and Fear Condition 0.12-1.38-1.30-1.64 0.18-0.68 0.25 (1.31) (1.18) (0.83) (1.17) (1.29) (0.59) (0.82) Fear and Pride Condition 0.78 0.44-0.54-0.31 0.99 0.13 0.66 (0.81) (0.62) (0.59) (0.64) (0.82) (0.46) (0.65) Gender -0.91* -0.11-0.23-0.16-0.69-0.30-0.15 (0.55) (0.42) (0.37) (0.44) (0.49) (0.28) (0.44) Immigrant Generation -0.22-0.51** -0.51** -0.31 0.15-0.25* 0.09 (0.29) (0.23) (0.20) (0.24) (0.25) (0.15) (0.24) Highest Educ. Degree (7- cat., 0-1) 1.72* 0.03 0.63-0.34 0.79 0.36 0.53 (0.98) (0.73) (0.64) (0.79) (0.84) (0.49) (0.80) Household Income level (5-cat., 0-1) -2.11** -0.94-0.39-0.08-1.01-0.67-0.50 (1.04) (0.79) (0.69) (0.85) (0.89) (0.53) (0.84) Age -0.03** -0.03** -0.03** -0.03** -0.03* -0.02*** 0.01 (0.02) (0.01) (0.01) (0.01) (0.01) (0.01) (0.01) Mexican -13.47-13.27-0.08 0.71-14.51-0.19-1.37 (1,782.09) (968.16) (1.10) (1.42) (1,583.91) (0.85) (1.20) Puerto Rican -14.01-14.37 0.33 0.21-15.41-0.37-2.37* (1,782.09) (968.16) (1.10) (1.40) (1,583.91) (0.86) (1.23) Cuban -14.29-13.56-0.25 0.36-14.55-0.41-0.42 (1,782.09) (968.16) (1.01) (1.27) (1,583.91) (0.79) (1.06) Other Latino -14.45-13.33-0.18 0.48-14.87-0.40-1.21 (1,782.09) (968.16) (1.07) (1.38) (1,583.91) (0.83) (1.18) Constant 14.57 15.65 3.27** 1.28 13.66 3.87*** 1.29 (1,782.09) (968.16) (1.42) (1.71) (1,583.91) (1.07) (1.53) Observations 166 165 166 166 165 164 164 R-squared 0.12 12
Table A.10: Study 2, Full Results for Main Effects of Treatments Estimating Non-Electoral Forms of Political Participation Among Independents Model 1 Model 2 Model 3 Model 4 Model 5 Model 6 Model 7 March Volunteer Talk Donate Boycott Participation Scale (OLS) Sent Postcard Fear Condition 0.09-0.28-0.18-0.93* 0.44-0.29 0.60 (0.48) (0.48) (0.49) (0.51) (0.49) (0.47) (0.52) Hope Condition -0.68-1.17** -0.46-0.57-0.34-0.74-0.13 (0.55) (0.57) (0.53) (0.53) (0.56) (0.51) (0.55) Fear and Hope Condition -0.51-0.87* -0.67-0.65-0.26-0.74 0.21 (0.48) (0.48) (0.47) (0.47) (0.50) (0.46) (0.52) Pride and Hope Condition 0.25-0.12 0.48 0.51 0.58 0.18 0.41 (0.50) (0.50) (0.54) (0.49) (0.51) (0.51) (0.55) Hope and Fear Condition -0.64-0.26-0.35-0.73-0.15-0.46-0.09 (0.47) (0.45) (0.46) (0.46) (0.47) (0.45) (0.48) Fear and Pride Condition 0.09-0.07 0.06-0.23-0.03-0.13 0.39 (0.49) (0.50) (0.50) (0.49) (0.52) (0.49) (0.53) Gender -0.14-0.15-0.78*** -0.17-0.32-0.35-1.17*** (0.29) (0.29) (0.29) (0.29) (0.29) (0.28) (0.33) Immigrant Generation -0.13-0.26* -0.09-0.18-0.04-0.14-0.19 (0.13) (0.13) (0.13) (0.13) (0.14) (0.13) (0.14) Highest Educ. Degree (7- cat., 0-1) 0.64 0.99* 0.76 0.44 0.33 0.78 0.34 (0.59) (0.59) (0.59) (0.58) (0.60) (0.57) (0.63) Household Income level (5-cat., 0-1) -0.65-0.66-0.04-0.37-0.04-0.41 1.34** (0.52) (0.52) (0.51) (0.52) (0.52) (0.50) (0.58) Age -0.02* -0.01-0.03** -0.02-0.00-0.01-0.02 (0.01) (0.01) (0.01) (0.01) (0.01) (0.01) (0.01) Mexican 0.31 0.43-0.16 0.76 0.22 0.32 1.27 (0.61) (0.62) (0.63) (0.64) (0.60) (0.59) (1.00) Puerto Rican 0.37 0.30 0.20 0.43 0.34 0.44 2.12* (0.65) (0.66) (0.68) (0.67) (0.64) (0.63) (1.09) Cuban -0.02 0.33 0.27 0.78 0.64 0.46 0.76 (0.77) (0.75) (0.76) (0.78) (0.75) (0.73) (1.06) Other Latino 0.22 0.36 0.07 0.72 0.31 0.37 1.21 (0.60) (0.60) (0.61) (0.62) (0.59) (0.58) (0.97) Constant 0.56 0.50 1.84** 0.32-0.67 2.92*** 0.47 (0.92) (0.92) (0.93) (0.93) (0.93) (0.89) (1.21) Observations 254 253 252 252 249 243 253 R-squared 0.05 13
Table A.11.1: Study 1, Cell Distribution by Experimental Condition (after dropping 14 outliers based on survey length) Control Threat Opportunity Coupled n 249 250 250 252 Table A.11.2: Study 2, Cell Distribution by Experimental Condition (after dropping outliers based on word count) Control Fear Hope Coupled Fear and Hope Coupled Hope and Fear Coupled Fear and Pride Coupled Pride and Hope n 175 166 154 162 159 162 152 14